Has anyone added any customized application to their Nav?

[G'edup26]

I was curious if anyone out there has been able to add any customized programs to their nav, namely on an 04 G35 coupe. For instance, the newer models seem to have more programs than older models. Can it be done? If so, how? Or where can you have it done?

[KPierson]

I've completely modified my Navi system on my '04 G35.

I've added a carputer in the trunk that displays on the OEM screen, here is some info about that:

I went with something real basic with the sole purpose of it to display and log engine parameters.

The computer connects to my AEM O2 through a serial connection and then it connects to my UTEC engine management through USB. I have software that takes these two readings and merges them. I then output the signal though a video out and convert it to RGB+S which then displays it on my OEM Navi screen. I can toggle back and forth from Navi to Carputer through a custom switch I made that works off of the OEM Enter button.

To control the computer I got a wireless keyboard with built in touch pad:



I also have a network cable installed and can RealVNC in to the carputer from my laptop for log retrievel and tuning. I had initially went with wireless but I had some issues and went with the 'easier' solution.

The carputer itself is a 1ghz machine (Via EPIA) in the Mini-ITX footprint. It has a 40gb laptop harddrive and a M1 automotive power supply (works from 6-24vdc). I went 'cheap' and made my own case, which consists of a piece of plexi-glass cut to fit in my spare tire. It press fits on to the 'start nut' that holds the tire in place, and then I used a few eye bolts to provide stability towards the outside of the 'glass. Its pretty secure, yet comes out easily to access the tire:







Here is what it looks like on the dash:



After I finally got it working right (had some major issues with WinXP the first and second installs) I love it. It boots up in under 30 seconds and has been very stable for the past 2 weeks. I am somewhat concerned of the heat generated, but so far the two cooling fans have done a good job.

Cost -

Bought the motherboard, processor, and 512mb of RAM for $160Bought the wireless keyboard/mouse for ~$80Harddive - Free (used one laying around collecting dust)M1 power supply - $~70RGB converter - $50Misc. cables - $15UTEC engine control - $1100AEM wideband - $300

I obviously already had the UTEC and AEM, so they don't really count, and I had the RGB converter from a DVD project that never got completed, so all and all I spent <$350 to have continous monitoring of boost, a/f, RPM, timing, IPW, and a few other things with no added guages and now I don't have to carry my laptop with my 24/7.

For the actual navigation I've got the KPtechnologies OK bypass that allows me to switch between the navi screen and the carputer by pressing the 'OK' button twice. This makes going back and forth really easy and keeps the car looking stock (no added switches).

As far as actually adding programs to the OEM navi I don't believe anyone has been able to modify the firmware in any way. I know that someone cracked the Honda/Acura firmware a few years back and made some changes to it, but we haven't been that lucky.

[G_whizz]

WOW!!

Nice job!

Is that your company?

For the actual navigation I've got the KPtechnologies

Please add this into our Moification Database thread!!