Subwoofer Aftermarket Replacement

[ZGadson]

I have a 2002 Infiniti I35 with the Bose system and woofer. I also have the Infiniti brand subwoofer that I kept from my old Lexus. Is there any way I can just disconnect the Bose woofer and connect my Infiniti woofer straight into the Bose Amp?

(I tried it once already and ended up lighting the trunk up like the fourth of july when I touched two apparently wrong wires together)...

[96maxse]

Disconnect the battery! Bose amps run on different Ohms I think. The Infinity sub might work if you buy another amp and by pass the Bose amp. Ask someone in the car audio forum.

[ZGadson]

Ya think I could just replace the bose amp with my own? Use its stock wiring instead of running my own clear from the battery?

(And yes, I'm a genuis when it comes to important things like remembering to unhook the battery before playing with the car.)

[96maxse]

If you replace the bose amp with another then your speakers might not work in your car. You might be able to add another amp in addition to the bose amp, but just for the infinity sub. Yes you should unhook the battery so you won't have another explosion. The audio and security forum people should be able to help better than me.

[ZGadson]

Thanks for the help!

[Broadfield]

I can't recall what the factory impedance is on the sub in that car, but check on the magnet. Most OEM speakers have the impedance printed on the back. You want to make sure the impedance is the same on the new speaker. The other problem is whether or not the OEM sub is in a enclosure or just hanging from the rear deck lid? Your aftermarket sub will need a enclosure to get full potential. If you mount it free-air it will suck sound wise and blow easily. As stated above, you will need a aftermarket amp if the impedance doesn't match on your new sub. You also might run into a problem that your aftermarket sub won't just bolt in. Usually OEM subs are off a little from the common 8"/10" subs.

On a side note, I have been a high-end professional installer(own a shop) for 14 years and have never disconnected a single battery before I work on the car. That's over 23,000 cars personally, and a lot more than that if you add up my other installers who do the same. Not one single problem, EVER! Now, if you are not real good with electronics in cars, then I guess it's a safe idea...... just in case you ground something out that you shouldn't. But that's what fuses are for!

Let me know if you have any questions etc.

Toby

[mayfew]

I have a 2003 infinity I35. Is it possible to just disconnect the Bose sub and amp, then use the wires going to the amp as a signal wire and conventionally connect a sub and amp. By connecting the amp to the battery. The next question is then how would I turn the amp on? Would I have to "recreate" a remote amp turn on wire? Or is there a similar wire for the Bose amp that I can just use for the conventional amp? by keeping the Bose amp could I use the Bose amplified speaker connections to connect to a enclosed after market sub, what Is the power output for the Bose sub amp?

[the converted]

There's quite a few different ways to do the wiring. First step would be to pick what amp/sub you want to run. Then you can figure out exactly how you would wire it up in your car.

I'm also glad to see that there are a few Pros floating around. I was doing install at Tweeter before they started having all of their problems.

[mayfew]

Which method would you recommend? I have a small but powerful lunar amp(60 watts) and a 12 inch Sony X-Plod.

[snwbrdr435]

heres what i did i kept my bose amp to power my aftermarket speakers an then added a sub with another amp it bumps

[mayfew]

OK from that information, I will assume that the amp next to the rear deck sub is the only amp for the whole system, or is there an amp for each speaker like the older model maxima Bose systems?

[vernk]

What I did when hooking up after market amps and subs in a 2002? max was use the the pre-amp wires going to the bose sub amp (it wasn't wired into the big amp for the rest of the speakers) and had large power wires (put 2 1000w kenwoods in) the turn on lead should be in the wires. I had to make a wireing harness for the pre amps, i used male pin connectors and plugged that into the factory wireing (so I didn't cut the plug off) then wired that to RCA jacks for the amp.

[mayfew]

Ok, so there is a separate amp for the sub. I plan to use an after market amp. I just need to get preamp signal wires and the remote turn on wire from the factory harness and run my own power wires. Do you know the colors of these wires? Or is it very obvious, I haven't looked yet. Thanks for the help everyone.

[infinitylover]

Hi, I was reading this and decided to add my 2 cents about my 02 I35. I added a box with two infitinity 10" and a mono D-Class 350W alpine amp. Since the factory sub has an amp attached to it, I used the green/white stripe for amp turn on (12VDC with key turned), ran 8 gauge to battery for power, used the factory sub amp's speaker output to provide signal to the apline high level inputs. I had to turn my amp level pretty low, but it rocks hard. Very happy with the sound. I heard that the line level inputs to the factory sub amp was too low even for preamp connections, so I went with the high side. It sounds incredible.