My suggestion is since you put an aftermarket radio in, re solder the original connect to it's wires, then buy any installation adapter, this will plug into your harness and into the new radio without cutting any wires. These adapters power all needed items so everthing works. This is the proprer way to do the job an cars with onboard computers, like yours for example.
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Thursday, March 10th, 2011 AT 8:10 PM