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Old 10-13-2009, 09:48 AM   #1
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Default Verification of harness

I did search FIRST. However, did not fee comfortable strictly trusting a post from 2006.

I have a 2000 Bonneville SSEI with factory Bose stereo. I am replacing head unit with a Pioneer DEH-510UB. I also have a 5 channel Memphis Belle to power my aftermarket JL speakers. I want to confirm the harness I need is the METRA 70-2054.

Appreciate in advance all help provided.
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Old 10-13-2009, 04:23 PM   #2
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If you plan on bypassing your factory amp you will need a GMOS-5 and if you are gonna keep your factory amp you need GMOS-9
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Old 10-13-2009, 05:44 PM   #3
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I am removing the factory amp and replacing it with the Memphis Belle. I will not be using the factory wiring to go from the head unit to the aftermarket amp. I will be running two sets of RCA wires (front/rear). Another question though. I have a set of JL VR690 for my upper deck rear. Am thinking of wiring them in parallel with a set of memphis speakers for the rear doors. The amp is stable at 2 Ohms for this. Is this the route you would go, or would you forget even using rear door speakers? I am also using JL VR650-csi components for the front. Thanks again for your help.
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Old 10-15-2009, 05:39 PM   #4
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Looking up this harness I noticed it specifically states use for retaining ONSTAR system. My vehicle does not have ONSTAR. Is this still the correct harness? Thanks for your help.
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Old 10-15-2009, 11:11 PM   #5
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Yeah you will still need the os-5 to keep chimes, turn signals, air bags and other electrical components. If it were me, I would probably just run my rear doors off of the head unit but the amp may give it a fuller sound. I would just worry about the amp getting hot quicker. I have a feeling, you wont really hear the rear doors anyway.
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