• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

adding an aftermarket radio to bose/onstar/monsoon in 97-03 & 04-08 [*]

yeah the way i did this worked fine (have bose; no onstar) on a 2000 gtp.. i took a qwik connect from walmart, and put that along with a 2 inch wire on the pink wire into the little (black i think) harness that goes into stock radio (pink wire is bose remote) and added a male connector on there, then put a female end on the blue remote for aftermarket radios and plug them in. Amp turns on when my radio turns on. i put a switch cover in myself, goes into the little cubby on drivers side (far left, closest to door) made out of a mudflap that has three switches (1 for strobes in headlights, 2 for my grill lights and 3 for my sub amp remote.. i used one wire from battery into the cubby and split it and then i dont need to use the radio remote for my subs, just cant leave it on and everything works great
 


thanks for the how-to & info. might get around to putting in my kenwood stereo one of these months...lol
 
dbinnc said:
Just read the how-to. Little update. the 2008 GP uses the gmos-01 not the gmos-04.
Click to expand...

Little 2010 Update

Maybe a 2008 without the Monsoon but the amp doesn't have line-level inputs on it with a Monsoon system. Therefore, you need to have RCAs to output to the stock amplifier. I personally just soldered some on to the aftermarket harness and plugged it in.

I haven't tried to simply wire it from the aftermarket head-unit's speaker levels, but would presume that would be WAY overpowering to the amp's inputs.
 
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