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01-16-2007, 04:05 AM
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Hummer Novice
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Join Date: Dec 2006
Posts: 17
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'07 H3; Aftermarket radio installation
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
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01-16-2007, 04:33 AM
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Hummer Professional
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Join Date: Aug 2005
Location: Humble, Texas
Posts: 325
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Re: '07 H3; Aftermarket radio installation
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.
__________________
2010 Red Rock Metallic H3. Just as cool as the first four Hummers I owned. Yeah, I have a problem.
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01-16-2007, 04:41 AM
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Hummer Authority
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Join Date: Mar 2006
Location: Chicago, IL
Posts: 1,086
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Re: '07 H3; Aftermarket radio installation
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?
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01-16-2007, 04:43 AM
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Hummer Expert
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Join Date: Oct 2005
Location: CO
Posts: 594
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Re: '07 H3; Aftermarket radio installation
Soundgate digistar works well in that rig, and it is all in one piece (no separate chime module).
__________________
\'05 Slate Blue Sut w/ Magnusun, JBA headers, custom exhaust, 22\" MC2 RT5 wheels, Pioneer AVIC Z1 nav, Passport SRX, Vizualogic A1000 dual, bi xenons, fog xenons, dual optimas, and just gettin\' started!
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01-16-2007, 04:56 AM
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Hummer Novice
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Join Date: Dec 2006
Posts: 17
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Re: '07 H3; Aftermarket radio installation
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)
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01-16-2007, 05:01 AM
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Hummer Novice
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Join Date: Dec 2006
Posts: 17
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Re: '07 H3; Aftermarket radio installation
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
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01-17-2007, 03:44 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: '07 H3; Aftermarket radio installation
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.
__________________
"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
(John 3:16)
2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
Priors...
Explorer
Commander
71 Vette
You Name it!
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02-05-2007, 10:26 PM
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Hummer Novice
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Join Date: Feb 2007
Posts: 20
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Monsoon amp
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
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02-05-2007, 11:57 PM
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Hummer Professional
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Join Date: Sep 2006
Location: Memphis
Posts: 349
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Re: Monsoon amp
Quote:
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
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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..
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02-06-2007, 12:29 AM
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Hummer Novice
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Join Date: Feb 2007
Posts: 20
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Re: Monsoon amp
Quote:
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..
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Thanks I'll give it a shot with them.
Paul
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05-08-2007, 02:20 AM
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Elcova Newbie
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Join Date: May 2007
Posts: 1
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Re: '07 H3; Aftermarket radio installation
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??
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05-08-2007, 03:35 AM
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Hummer Veteran
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Join Date: Dec 2006
Location: H2 Plant
Posts: 46
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Re: '07 H3; Aftermarket radio installation
Quote:
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??
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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
__________________
07 H3 - Victory Red with black & tan cloth interior, 305 Mickey MTZs, rock rails, brush guard & lighting, and a loud stereo
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