Carputer: First major mod

Forum for Infiniti M35 and M45, and Nissan Fuga owners.
TDot
Posts: 1183
Joined: Mon Oct 03, 2011 12:59 pm
Car: 2008 M35X, Lakeshore Slate/Tan
Location: NY

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OK, so first step is buying the parts. This can get extreeeeeeeeemly tedious, annoying, money pit no matter how much you think you know about computers or modding. Just start and you’ll quickly learn what I mean.

Computer: Zotac Nano: $270 (you can build better, but unless you are one of those that want the best simply for the sake of it, this will be WAY MORE than what you need)

Monitor: Lilliput 669GL 7”: $180 (great touch response, decent sun readable, but I plan on upgrading to a different one that is crystal in the brightest sun for about $600…I keep my roof open)

Power: DCDC USB: $60 (provides the power for the computer, monitor, and auto start/shutdown for computer)

Power Case: $7

USB wires: 2 16’ to reach glovebox: $32; 1 10’ to reach touchscreen: $6; 1 3’ to power supply $4; 1 4 port hub in glovebox $4; 1 5’ from glovebox to speaker: $6

HDMI wire: 10’ to reach monitor: $8

Right angle HDMI adapter: $6 (MUST be sure to get the 270 degree and not the 90 degree with this particular monitor)

Speaker: AYL mini: $13 (The absolute BEST little speaker I’ve ever heard! Bought for general computer feedback and to hear it talk to me like KIT lol, but caught myself a couple times listening to music on it)

Speaker Wire: 15’ Stereo headset extension: $6 (Didn’t really want to buy 15’, but it was the best build quality for the price)

Ground Loop Isolator: $11 (I bought this for a specific set up I’m doing, so you may not need it, but it works)

Various wires, connectors, relays, switches, grommets, fasteners, led indicators, and other stuff: Maybe $100-250.

Leather to match interior, free sample from a furniture store. Sorry, but no pics of the touchscreen fabrication.

We’ll assume you have all the tools you’ll need to do this.
Total $763-$863

Depending on how in depth you want this thing to interface with the car…you can do some amazing stuff with the car…you could spend up to $3000. Caveat, after you get everything together, there is one thing that would be HIGHLY useful, almost a necessity, but you may never need it again, http://www.amazon.com/Pyramid-13-8-Volt ... 11&sr=8-11.

So after everything is bought

Pre setup: Create the led/switch box, I’m probably going to do it again because I don’t really like how it’s not perfectly flush with the area of the cigarette lighter.
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Testing everything out.
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Step 1: Drill the hole for your power line. I drilled it in that small crevasse above the grommet on the passenger side. I recommend not drilling it there because it is hell fishing it through the firewall covers if you want to keep them in tact, getting the grommet in cleanly, and then sealing it up. I chose that spot initially because I was paranoid of the rain and water leaking in. Image

Step 2: Take the car apart and drill the hole through the front of the car. Instead of posting all the pics of ripping the car apart this How To FAQ was my whole process. just-testing-thread-post-t555705.html#p6311317

Step 3: Secure fuseholder that the power cable is running from.
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Step 4: Run the wires. I chose to run the wires over the back seat and through the rear of the center console. I first took a clothes hanger and attached a strong 5’ 12awg wire and ran that through. I then got rid of the cloth hanger and used the wire to fish the rest of the cables with. The reason for this is I found it easier to pull a flexible wire through and get over the little hump at the front of the back seat…especially when it came to the usb and hdmi heads. Also, with the length of the wire, I didn’t have to refish it, there was still enough on the back end to just pull it back and attach the next cable to fish.
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Step 5: Set in the monitor, speaker, ground isolator. (Maybe one day I’ll set up a switch to pipe the computer through the system, but for now I just need simple computer audio feedback) The wires and relay under this is a VERY tight fit.
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Step 6: Designing the spot to hold the computer. It’s not pretty, but it does the job and secures the computer pretty tightly.
Left side of trunk and space, where trunk rope is attached to:
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Where the computer will sit:
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Had to build a little platform, because if you look two pics up, you’ll see little knobs from the trunk pully protruding.
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Me nearly cutting off my toes with the saw making this stupid platform. It was way worse than how the pic looks, the saw cut down to my socks when it bucked and ran loose…I sat quiet and still for about 15min after lol.
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The overall enclosure built. The bracket I got at home depot, and the little round bumpers are there to hold the computer in snug…they are the things you buy to put on chair feet to slide them easily.
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Finished
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Step 7: Connect everything. Power, ground, remote wire, cables, led lights, switch. Sorry, no final pick. I used the thick awg wire in the pic at the end of step 5 going to the cigarette lighter as the remote switch for the power. I grounded to the backrest of the backseat; there are two grounding points. I used a cat5 cable to connect all the LEDs as needed. Much easier to run one single cable, and since they use low current this should be sufficient. Although next time I'll prob use cat6.
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The only other thing I plan on doing in the near future is using the fact the computer is dual display, add a switch and feed the display port on the computer to the dash touchscreen using something like PAC VCI-NIS for an M35. That way I can put the nav in aux mode, flip the switch, and have the computer in the car’s monitor if I need it.
Last edited by TDot on Thu May 24, 2012 4:06 am, edited 2 times in total.


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motoxxxloak
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Joined: Wed Sep 14, 2011 9:11 pm
Car: 2006 Infiniti M45, Custom exhaust from cat-back, 20" MRR GT1 20x8.5 front and 20x10 rear
Location: Fontana,CA

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That's awesome...thought about doing that In my Tahoe before I sold it...two questions...is you're center console gone now? Or is the screen built into the lid...secondly, what are the switches for In the ash tray??

TDot
Posts: 1183
Joined: Mon Oct 03, 2011 12:59 pm
Car: 2008 M35X, Lakeshore Slate/Tan
Location: NY

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The only thing that is gone is the actual cup holders. I built the touchscreen into the cup holder container. I kept the lid to cover up the screen....new York...nuff said. The red led is for the navigation bypass, the green is CPU led, yellow is power supply led. The switch in the cogarette lighter is nav bypass, the switch in the ash tray area is computer remote bypass. I plan on getting a couple snow switches to replace the switches there. I just have to find out how the circuits work...they look like relays.

built2makeit
Posts: 89
Joined: Thu Feb 04, 2010 8:38 pm
Car: 2007 Infiniti M45

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maybe im a lil slow, but what does the carputer do, is there any benefit? looks good

TDot
Posts: 1183
Joined: Mon Oct 03, 2011 12:59 pm
Car: 2008 M35X, Lakeshore Slate/Tan
Location: NY

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What's the purpose for any mod?
-Free traffic avoidance navigation.
-Lowest gas price finder with distance and navigation. (def need this now)
-Alternative navigation...lately I haven't been happy with Infiniti's directions.
-OdbII hook up, no unneeded travels to Infiniti, def come in handy when the warranty is up.
-Reminder system, I hate the maintenance reminder system.
-Remote start car from anywhere without monthly fee. (fall/next year project)
-Turn signal camera at front. (if BMW and range rover has it why can't I)
-Video/audio recorder. My friend just got out of serious false charges because of a crooked cop due to his system, and I've seen others saved by this like false accident claims.
-Best of all, pull up a movie while waiting for your girl to finish shopping lol.
-Text reader, I hate getting text while driving and unable to read them.
-many many other things. everything the fords, scions can do and much more since I write software.

jhuerto23
Posts: 560
Joined: Mon Apr 26, 2010 8:14 am
Car: 2006 Infiniti M45
Location: Northern Cali
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TDot wrote:What's the purpose for any mod?
-Free traffic avoidance navigation.
-Lowest gas price finder with distance and navigation. (def need this now)
-Alternative navigation...lately I haven't been happy with Infiniti's directions.
-OdbII hook up, no unneeded travels to Infiniti, def come in handy when the warranty is up.
-Reminder system, I hate the maintenance reminder system.
-Remote start car from anywhere without monthly fee. (fall/next year project)
-Turn signal camera at front. (if BMW and range rover has it why can't I)
-Video/audio recorder. My friend just got out of serious false charges because of a crooked cop due to his system, and I've seen others saved by this like false accident claims.
-Best of all, pull up a movie while waiting for your girl to finish shopping lol.
-Text reader, I hate getting text while driving and unable to read them.
-many many other things. everything the fords, scions can do and much more since I write software.
Wow that does a lot of goodies..

06M4.5
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Joined: Thu Sep 09, 2010 6:04 am
Car: 2006 M45
Location: Florida

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and what would something like this cost?

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SiMpLyMoDiFiEd
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Car: 2006 M45s, GSXR 1000
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I want!

TDot
Posts: 1183
Joined: Mon Oct 03, 2011 12:59 pm
Car: 2008 M35X, Lakeshore Slate/Tan
Location: NY

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full write up.

sumyungm35
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Joined: Mon May 21, 2012 8:33 am
Car: 2008 M35

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that thing is sooo dope man great write up too

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SiMpLyMoDiFiEd
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TDot wrote:full write up.
no the setup lol

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Ilya
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NIce dude!

TDot
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thanks all

Larz
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Staggeringly Brilliant, mate! Infinit is soooooooooo in need of creative minds like TDot!

TDot
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Car: 2008 M35X, Lakeshore Slate/Tan
Location: NY

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Thanks, I've actually done some big upgrades to this, ill update as soon as I get a chance.

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svard75
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Car: 06 M35x
Location: Toronto, Ontario, Canada

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Great stuff TDot! Def something I was looking to do. I would personally prefer more integration and a touch screen monitor to replace the existing. I'm really digging the new q50 dual monitor setup.

TDot
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Car: 2008 M35X, Lakeshore Slate/Tan
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So I changed a few things around and made my computer the cars infotainment center. I wrote the headend software (music, movies, gps, schedule, red light detection, low gas price finder, traffic finder, voltage to equipment monitor, and more) and am good to go. I removed the speaker from under the touchscreen and got an external 48khz digital sound card with optical out and sent directly into the 360.3 processor audio system.

I made the system into a dual screen setup, I had it before the q50 :tongue lol. This is done by ways of multipoint relay (forgot which one), and an additional snow switch (which ill soon customize). When I flip the switch the factory monitor switches between the second computer screen, and the factory stuff.
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Video feed switch device:
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I can control both the cars functions and the computer through the steering wheel (i can actually use any and more of the buttons on the console, but there's not that much I need access to on the computer, so for now I'm only using the audio buttons on the steering wheel.) I just flip the extra snow switch and the factory screen changes over to the computer as well as the steering wheel controls, which I program for specific functions.

Relay system to handle switching the video feed and steering wheel control:
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I place the relay and the video feed switch under the stock stereo.
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For now everything that needs to be pressed, moved and controlled on the second screen is done by ways of the control on the steering wheel, or with a mini keyboard. I was going to also make the factory touchscreen a touchscreen for the computer by taking the tactile sensors and feeding it to the computer by ways of USB sensors, but realized I don't even use the touchscreen for the cars functions, so although cool, would be a huge waste of time.

I moved the GPS receiver for the computer from the glovebox to where the center speaker is so I have a better view of the satellites. Locking is better and faster. The GPS receiver is used to pinpoint gas stations and let me know their distance precisely, used to automatically dim the monitors based on time zone location, red light camera detection, and more.
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I added a better usb hotspot to the glovebox for better access when I need to upgrade or add things.
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What's left to do?
1/ Removing that little switch light system in the ash tray, and putting a mini touchpad in. That will solve two problems, one: on cold days the touch on my aftermarket monitor doesn't work <40' on initial startup and for about 10 min, two: direct and easy access to the factory screen without using a mini keyboard.
2/ I'm adding another relay to the switch that changes the monitor feed to shift the passenger audio feed to the center speaker. That way, when I have the computer feeding the audio, I can still have feedback from the car as far as navigation, phone, and whatever else play through the center speaker without any issue. Complete integration of aftermarket audio and factory bells and whistles.
3/ mini webcam hidden behind the rearview mirror with data feed of speed/GPS/time and audio recording. Police in NY have been bugging me lately and I don't trust them from how I've seen them acting lately.

I might take some video when I get a chance.

TDot
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Added the touchpad. its easier manipulating things than with the touchscreen. And now I have full control of the factory screen without the mini keyboard. I also wrote a software that lets me write out things on the touchpad and translate it to text like the Audi.
Initial size testing:
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Fabrication:
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Semi Final look:
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All I have to do now is raise it about 5mm higher, and darken the color to better match the wood grain. And then paint over the "snow" with something custom that looks seamless.

Added this relay that let's me have the factory phone and navigation through the center speaker while I'm playing the music through the aftermarket system.
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TXT
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Location: Mooresville, NC

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Very nice mods. I like mods where lots of work is involved to make things easy to use...but keeps the car looking stock.

jiggersplat
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more info on how you hijacked the factory infotainment screen please.

TDot
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Thanks.

I really don't remember which wires I spliced into to hijack the feed off the top of my head. But the instructions come with the device. But you really don't need it unless you need VGA connections because you can just do a bypass on the aux wires and splice a video feed directly into the aux video feed.

EdBwoy
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This is a serious mod. I often dreamed about using my old laptop screen as a car infotainment system but the lack of skill just quashed that idea as soon as it came up. Congrats on such a big undertaking!
2 questions:- does this set up cause any significant increase in battery usage?
- did you do the turn signal camera or audio/video recorder? If so, does the system turn off with the car or does it stay
on full time Russian dashcam style?
Again, congrats

TDot
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Thanks.
I only have it on when the car is running, so no noticeable increase on battery load.
I didn't do those other mods yet. I can't find a reasonably priced camera to use for the turn signal, or space in the car for the video converter. As you see I require all my mods to fit inconspicuously. Although an idea just popped in my head to research to try something, so I guess I'll revisit this.
As far as the audio video recorder, I'd be using a web cam so price isn't the hurdle here, it's capability and size. There is one good camera from Logitech, but the night view isn't great and I'm not too happy about the size.
You couldn't use this to run a camera through the night with the engine off, the computer would kill the battery in a couple hours. I have some thoughts on some workarounds, but from what you said about your dreams you probably wouldn't want to delve that deep into this.

EdBwoy
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TDot wrote:Thanks..., but from what you said about your dreams you probably wouldn't want to delve that deep into this.
Well, a man must know and respect his limits.

TDot
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Lol.
This is what occurred to me: video controller
Since I don't need to tie those cameras into the computer, I don't need one of those bigger video converters. With this I could tie it to the screen switcher I already have. The switcher has a backup camera switch, so instead of wiring in the reverse signal, I'd wire in the turn signal. Then anytime I hit the the signal the video feed would pop up on the screen automatically. Now it's a matter of finding the right camera, and get over my fear of drilling into the fender. If I do this ill do a different write up since it won't directly pertain to the computer.

EdBwoy
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Shouldn't be too hard to get a spare fender for an M35, just in case. Good luck, and I'll be lurking for the write up

TDot
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Car: 2008 M35X, Lakeshore Slate/Tan
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(Copied from another thread about an issue related to satelites loosing lock with the cars gps rceiver based on geo location since its directly related to thread)

...Anyway, even though it's working fine now, I was determined to never run into this situation again so I decided to program my own navigation system into my front end app based off of google maps, so now i have traffic capabilities. So far it's coming along great. The only major obstacle I've had so far is to make the bearing of the map change with direction, but I think I've figured a way to do that. I've even been able to program turn by turn voice nav even though google was determined to prevent it lol, and add traffic accident/incidents even though google doesn't provide it.

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TDot
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So, something I programmed was a cost analyzer of gas based on mileage. Lets me see what gas is actually costing me based on how I'm driving, and how much distance I'm actually getting between fill ups. I realized the way I was doing it wasnt all that accurate because of calculation time, and doing it based on my gps receiver speedometer wasnt accurate because of refresh rate...1hz. So, I decided to use a OBDII bluetooth, and grab the speed from that. Now my car can see accurate speed and I can do a bunch of things based on that.

It in turn got me thinking. Why not talk to the cars CAN and get some other things done that have been annoying me? Like what?

1/ Auto locking the doors once a certain speed is reached.
2/ Auto unlock the doors when egnition turns off.
3/ Mute aftermarket audio system (tied through the carputer) when the navigation is speaking or the phone activates.
4/ post6617165.html?hilit=Reverse%20turn#p6617165 (Im most excited about this now, because if this works, this way will be so much easier)
5/ whatever comes to mind.

I'm going to try 1 first to see if it's possible as soon as I get a chance. 4 will probably wait until spring.

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Ilya
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Neat stuff. As a techie, this stuff is cool. Just never got around to it.


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