DIY: Add a sub to your Bose equipped G35 Coupe

[paky786]

Originally Posted by JUM3

alright. I'll give this a try. to clarify. These are the same wires on the BLue Bose input connector right?

Exactly.

[NgoFrickinWay]

I followed this write-up to the T and it's working perfectly with no problems after 3 hours of diligent work. Ran into some mishap at the factory amp cuz my friend doing that end misread the instructions, so I went back and fixed it.

Currently running:

-4080 Driver's side enclosure
-Alpine V series MRP-M500 set at 60% gain
-Audiobahn AW1008T sub bumping 1 voice coilover
-Generic 8-gauge power cable I pulled from my Celica with a 60AMP inline fuse
-Monster Cable RCA cable

[JUM3]

Originally Posted by paky786

Exactly.

Im a dumbass... turned out my amp wasn't getting power at all.. so after i hooked up the rca cables. nothing was working. only because of the remote wire, my amp had a led on - leading me to believe it was on.

So after giving up... I took it to Best Buy to call it quits, and the tech guy points out that Im missing a fuse for the Power kit. It was in the unopened bag I ignored during the install. Once i installed that. the set up worked.

Anyways, great write-up... I have no experience in wiring or audio equip, but the installation went well.

Running a test setup of a cheap amp and kickers....

Waiting for a custom box to be made to fit my JL 10W3 and Jl 500/1

[Marlin84]

I just joined, this is my first post. I also just picked up my new (to me) '06 Coupe, Premium Pkg, Sunroof, Black on Black. I moved up from an '03 Sentra SE-R that that was about to run into needing a transmission rebuild (1,000 or 20,000 miles.. I wasn't sure, but it was the perfect reason to get the car I've always wanted!)

I had a Pioneer HU in the SE-R with RCA pre-outs running back to my amps in the trunk. It's nice to find that the G has low-level inputs running back to an amp in the trunk!

I'm going to use a few pieces of my current equipment:
10" Pioneer Shallow Mount Sub
GM-5000T
(Have a GM-6150F that will go into storage for now)

I have the 10" mounted in a small, sealed box I built myself from 1/2" MDF. I never got around to carpeting it as my trunk was never all that attractive in the SE-R.

I had the amps mounted to a large piece of MDF secured to the trunk floor.

I'm going to carpet the box and sew on some large strips of velcro (the stiff side) onto the bottom. I'm not sure just yet what to do with the amp, as I don't really want to mount it to the back of the seat.. I'll explore the area under the floor, above the spare, see if there's space (I really have no idea..). I figure the velcro holds the pouch for the manual in place very well, it should handle the small sub box pretty well. I love that 4080 custom box, but I don't want to spend that kinda $$. And this should tuck away neatly and remove in a snap if I ever need the full trunk.

I spent $100 on the Sub new, just over $40 a piece for the amps used off of eBay, about $40 on all the wiring and maybe $10-$15 for the box material. It's worked very well for nearly 3 years now. I don't need to rattle the windows, which is why I went with the 10" shallow mount in a sealed box (only needs 3/4 cu ft sealed). I had the low-pass filter on the amp set to around 50 Hz and leave it there- clean, crisp punch but not the shear mass volume from a (much larger) band-pass enclosure.

I want to stay on my current budget (which is FREE since I own everything I need already), just making it MUCH more tidy and clean so it looks properly at home in the G.

Any thoughts? Comments or suggestions are welcome. I plan to leave the 6x9's in place and functional.. I'm just not sure if tapping the signal for the left-rear speaker (pre-amp) is going to degrade the signal in any way..

I'll get pics of anything unique along the way, as well as the final setup.

[paky786]

Hey, welcome to the thread and nice G! After a while you'll realize that stock crappy nissan speakers will baffle your subs. I'd be upgrading speakers fairly soon :P

[Marlin84]

Well, in my SE-R, I replaced the fronts with some 65W RMS Pioneer 4-ways, but left the stock tweeters and rear 6.5"'s hooked up. I had planned to upgrade the rears to some 2 ways with similar power capability, as the 6150F amp was well suited to put out that power to 4 channels.. but I never got around to it and never had the urge to spend more, as I couldn't stand to push the stereo much past about 5/6ths even with the windows down at 85 mph.. When I wasn't at that speed or had the windows closed, about 3/4ths was the highest I ever had it set. It also had a stock 8" open-air sub on the rear deck that I just un-hooked but never removed.

The frequencies I have the sub snapping on didn't sound any louder with your face in front of the speaker face (not really a cone..) than from the driver's seat with the trunk closed. I'm counting on pretty similar characteristics in the G. Plus, I want to avoid tearing into the G as much as possible. It looks so sharp, I don't want to do anything to take away from that.

The only thing I anticipate upgrading/modding anytime soon might be new tint (there are some imperfections in the front windows around the edges of the glass, and I don't think it's quite 35%, which is the limit in GA). The black interior can use all the help I can give it come next summer.. Plus, the black interior makes the tint looks so much darker (and more badass ) than the light interior in my SE-R. I'd love some 18's, but the dealer sprang for new rubber on the stock 17's, and rubber for 18's is at least half again more expensive for a set..

[Reket]

Impressive job and great detail write up!

[Twinsen]

I'm just about ready to get started on my build on my speaker system + CarPC. The only thing I'm really waiting on is I can't make the decision of going with 2 10" subs or just 1 12" sub. I currently have 2 10"s in my other car, a Honda Civic Sedan and they sound great, and originally was thinking of putting those in the G35. But would 1 12" sub perform possibly the same? I run the 10s with a mono-class D JL 1400w amp. I don't recall the model number.

What do you guys think?

[donpisto]

I still need to do this :/

[Marlin84]

Originally Posted by Twinsen

I'm just about ready to get started on my build on my speaker system + CarPC. The only thing I'm really waiting on is I can't make the decision of going with 2 10" subs or just 1 12" sub. I currently have 2 10"s in my other car, a Honda Civic Sedan and they sound great, and originally was thinking of putting those in the G35. But would 1 12" sub perform possibly the same? I run the 10s with a mono-class D JL 1400w amp. I don't recall the model number.

What do you guys think?

I think 2 10's will give you more volume. A 12 potentially can hit a slightly lower freq than a 10, but it depends on the respective designs. So depending on the results you want, you may not want 10's.

As for the volume, remember this rule of thumb. To double the amount of sound, you can double the number of speakers as long as they all remain driven at the same wattage. Or, you can quadruple the power going to the initial number of speakers.

If you have a 10" sub running at 200 watts, adding a second 10" at 200 watts will give the same result as driving a single 10" at 800 watts.

I say keep the system that you know works

[HBK2639]

Hi there, I was wondering instead of splicing the gauge wire with the rca jack can we use the 7551 bose integration wire harness as a replacement method.
Has anyone try this and have same or great results?

With a amp. and sub. setup, would anyone suggest or recommend the jl audio clean sweep as part of the setup?