Wire Harness for 2001 SSEi
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From: Central Illinois
Wire Harness for 2001 SSEi
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From: Alberta, Canada
No. This is the correct style for the 2000+ cars, but it is made for cars without the separate amp in the trunk. I undertook a project which required I leave the Monsoon amp in and I had to purchase two of these connectors and steal terminals from one to supplement the other. I'm not aware of one manufactured for stock systems with the external amp 
Been looking....what about a GMRC-04 or 05? Is the BOSE the same as the corvette system? Would it be possible to use and adapter for the vette?
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From: Somewhere south of Ottawa with your girlfriend driving faster then you.
If not using the Bose/Monsoon amps just re-wire the system... There is a monsoon Adapter im not sure of the bose one just go into a stereo shop they will hook you up
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I don't know for 100% fact, as I've only done non-amplified and Monsoon equiped Bonnevilles to date, but I'm almost certain you can retain the use of the BOSE amp by simply powering up the amp turn on wire and putting a low level signal into it. The Monsoon amps I KNOW are databus controlled, so until somebody makes an interface specifically for it, its a complete rewire job.
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From: Toronto, Canada
Wouldn't this work ?
Pac Audio OEM-2
http://www.pac-audio.com/products/pr...egration#oem-2
http://www.pac-audio.com/instruction...mmSearch=OEM-2
Personally I haven't seen a newer Bonne in my shop for a while so I don't know 100% for sure, but this is what I would use. Other wise I would do a re-wire at the amp.
Dutch
Pac Audio OEM-2
http://www.pac-audio.com/products/pr...egration#oem-2
http://www.pac-audio.com/instruction...mmSearch=OEM-2
Personally I haven't seen a newer Bonne in my shop for a while so I don't know 100% for sure, but this is what I would use. Other wise I would do a re-wire at the amp.
Dutch
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From: Toronto, Canada
You either have two options that I can see.
1) Try the part which I posted the link for which should do everything for you. It will provide an adjustable input voltage into the factory amp so that you don't have to eliminate it.
OR
2) Run wires from the aftermarket HU to the speaker wire outputs from the factory Amp and bypass it completely. This option you will be running the speakers directly off of the new HU.
Dutch
1) Try the part which I posted the link for which should do everything for you. It will provide an adjustable input voltage into the factory amp so that you don't have to eliminate it.
OR
2) Run wires from the aftermarket HU to the speaker wire outputs from the factory Amp and bypass it completely. This option you will be running the speakers directly off of the new HU.
Dutch