'07 H3; Aftermarket radio installation

[96TL]

Hey guys. I just got my H3 a few weeks ago. I want to add an aftermarket double DIN headunit. I'm a little confused as to which wiring harness I need. I want to keep the OnStar and door chimes. I plan on running aftermarket amps and speakers. I know I need the Scosche GM1595 for the double DIN install, but I'm confused about the harnesses. I don't want to mess around with the factory wiring since its a leased vehicle. Thanks!

Dom

[HumbleAg]

To keep Onstar and chimes, I used peripheral GMAH24B and GMAHCM. I tried an all-in-one solution (Neucleus NC-GM39B) but it caused a "pop" in the speakers. Perhipheral stuff works great.

I'm not sure about aftermarket amp (I kept the monsoon that mine came with). The way the adapters plug in, I think you would have to modify the vehicle wiring to change the amp. May be a bit much for a leased vehicle.

Good luck.

[marin8703]

there are several adapters (harnesses, modules) that you can go with, different brands, like peripheral, pac and some others. The one I, and a couple of other people on here, have used is the peripheral GMAH24B, heres teh link, http://www.cardomain.com/item/PERGMAH24B , and if you would like to keep the door, key, etc chimes, you will also need the GMAHCM heres the link http://www.cardomain.com/item/PERGMAHCM .

I have not had any major problems with this module, except for one thing, the is an alternator "whine" present when you use onstar. I dont think this is because of the adapter but it might be related to it, i think its most likely due to the ground used. The reson i dont think its the modules is because i initially did not have the whine, but then added some more electronics to the truck adn maybe overused a ground and now i have it. But it might be related to the modules because some others who have used the modules also have had this problem.

which unit are you planning on installing?

[kodiakz]

Soundgate digistar works well in that rig, and it is all in one piece (no separate chime module).

[96TL]

I'm ordering the Panasonic CQVD6503U.
http://www.cardomain.com/item/PANCQVD6503U

I just want to make sure the door chimes and OnStar both function. I also want to be able to distinguish the power, ignition, and ground wires easily and w/o hacking the OEM wires.

This is the stereo I plan on installing.

Front components
Diamond Audio S600S

Rear fill
“CDT” CL-6EX

Subwoofer
JL Audio 13W7 (ported box)

Amplifiers
JL Audio - 450/4 - 150x2 (front) / 75x2 (rear)
JL Audio 1000/1 - 1000x1 (Subwoofer)

[96TL]

So the GMAH24B is just for the OnStar to function? I'm not using the OEM amps or speakers. Kind of pricey.

Thanks for the help so far everyone. This is a very friendly forum.

Dom

[wpage]

If you get that one without the chime mod there will be no audible alarms/tones exept the blinker. Make sure you get the current model or you will need to solder a jumper on the gm side of the harnes which I do not recommend.

[CCMDoc]

I just installed an oem navigation unit in my '07 H3. Looks like I need a monsoon amp instead of the amp that goes with the basic CD/XM stereo that I took out. Volume is low for OnStar, Nav and stereo itself.
Anyone here have one for sale or know the P/N so that I can get a hold of one?
Thanks,
Paul

[Crash ?]

Originally Posted by CCMDoc

I just installed an oem navigation unit in my '07 H3. Looks like I need a monsoon amp instead of the amp that goes with the basic CD/XM stereo that I took out. Volume is low for OnStar, Nav and stereo itself.
Anyone here have one for sale or know the P/N so that I can get a hold of one?
Thanks,
Paul

Paul.. Take it by the dealer, tell 'em what you've done, they'll plug it up do a quick programing change and you'll be good to go..

[CCMDoc]

Originally Posted by Crash ?

Paul.. Take it by the dealer, tell 'em what you've done, they'll plug it up do a quick programing change and you'll be good to go..

Thanks I'll give it a shot with them.
Paul

[zblackh3]

I've been approved for an H3 and will be getting it the first week of June. Would I still need these peripheral's if I bought a base H3?? I've got a JVC double din touch screen 7" unit, do the 2007 H3's require any type of brackets as well??

[JAYB1RD]

Originally Posted by zblackh3

I've been approved for an H3 and will be getting it the first week of June. Would I still need these peripheral's if I bought a base H3?? I've got a JVC double din touch screen 7" unit, do the 2007 H3's require any type of brackets as well??

Yes, you'll need to get a module of your choice to keep things like warning chimes, door chimes, and onstar.

With a double din unit, you may want to look into making a bracket using the system that the stock radio uses. Which is basically a plastic pin that slides into a hole in the instrument panel's frame structure. You'll see what I mean when you pull the stock radio out.

Enjoy, and welcome