Audio Systems: Aftermarket amp Factory stereo, 2006 chevy impala, chevy impala

Question
I'm trying to hook up an aftermarket amp(class d) to my factory 2006 chevy impala cd player(no bose),i have everything ran & wired to amp, but i cant seem to find anywhere to hook up the remote wire if you could please tell me what color wire it is on the back of the stereo harness an on which of the two it is on. If you cannot wire it to stereo, please tell me were else or what i need to accomplish this. Thanks A lot for your help

Answer
be carefully  that radio is wire to BCM  of the vehicle you cut the wrong wire and you will be force to visit the dealer use this interface  and i know it is expensive but the best way and safe way to do this rca and remove jacks  

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