DIY: Add a sub to your Bose equipped G35 Coupe

[lostG]

just wanted to say thanks everyone for your help. i got an alpine amp that has input selectors. damn it hits.

[lancer]

Just a caveat for anyone attempting to take this on (I write from my driver's seat covered in sweat )

I HIGHLY recommend removing both the lower cushion and the upper cushion of the back seat when trying to run the wire into the trunk-- it isn't hard to do, there are two oversized 14mm bolts holding a bracket to the chassis of the car, you just need to remove both of those and give it a fair amount of love to remove the whole seat. The bolts are extremely tight, so you'll need some leverage to get them out.

Once you get the whole back seat out, the rear panels are a lot easier to work with, and once the right rear panel is removed, there is a really nice obvious cable run that you can follow to the trunk. I just wish I would have done that the first time instead of piddling around wondering if I had to take out the whole seat.

Really not that bad if you follow this writeup

[travie46]

DR6 did you replace the rear panel speakers ?

Im looking to replace all my speaker but i dont know if i have to replace the rear panel speakers. my car have bose.

[Gilley]

The Bose cars have 2 front (plus tweeters) speakers, two rear side speakers, and two speakers ("subs") in the rear deck.

[VTECH8TR]

Originally Posted by Gilley

The Bose cars have 2 front (plus tweeters) speakers, two rear side speakers, and two speakers ("subs") in the rear deck.

I tried this today in my nem M35 and am using a JL 500/1 and a 12W7. The only problem is the bass is always loud. I turn down the volume on the Bose radio and the Bass is still going. I read the service manual like 10x before i soldered.

Someone please HELP.......

[Gilley]

In my sedan with the OEM Bose HU, I use the signal for the rear speakers to sens audio to the sub amp so I can use the fader to control the bass level.

Make sure your gain is adjusted on the amp too.

[VTECH8TR]

Originally Posted by Gilley

In my sedan with the OEM Bose HU, I use the signal for the rear speakers to sens audio to the sub amp so I can use the fader to control the bass level.

Make sure your gain is adjusted on the amp too.

I GOT IT.... I spent most of the day reading schematics, soldering, making the hole for the enclosure bigger. I went out to the garage just now and unplugged the 10" factory sub and used that for my input for the JL500/1 it works perfect and turns on and off like it should.

Man I have been searching this forum and the nico forum on the M section with no luck. I don't understand why no one has done this to an M. The sound difference is night and day. The BOSE system in the M is awesome, but now it is UNREAL ...................


My next thing is trying a 12W6v2. This 12W7 is TOO much bass for the car.

[GthirtyFive06]

Damn thats my next mod =)

[1trueG]

If youre selling your w7, let me know your price.

[VTECH8TR]

Originally Posted by 1trueG

If youre selling your w7, let me know your price.

I have 2 of them and 2 JL 13W7's.

[Gilley]

Originally Posted by VTECH8TR

I GOT IT.... I spent most of the day reading schematics, soldering, making the hole for the enclosure bigger. I went out to the garage just now and unplugged the 10" factory sub and used that for my input for the JL500/1 it works perfect and turns on and off like it should.

I'm glad you got it working, but I hope the M's Bose amp is different from the G's Bose amp. On the G, it isn't a good idea to run the sub amp off of any of the Bose amp outputs because of the Bose amp's built in EQ. Once you turn the volume past a certan level, bass output does not increase like the rest of the system. I imagine it is because Bose/Nissan want to limit potential damage to the cheap Bose speakers from distortion.

[TLBlueG35]

Has anyone notice that using the remote turn on lead from the Bose HU, the amps actually stay on after you turn the Power off, unless you remove the keys? Or is it just my car?

[travie46]

Originally Posted by Gilley

The Bose cars have 2 front (plus tweeters) speakers, two rear side speakers, and two speakers ("subs") in the rear deck.

i know that bose use 6.5" 2ohms speakers but i dont know whats better infinity or MB Quart also i was watching in another thread that fatmat is good like dynamat just that fatmat is cheaper. do you know where I can buy it because i already looks for all intenet and i cant found it.

[Gilley]

I used Fat Mat instead of Daynamat.

[travie46]

I want Fat Mat but where i can buy it.