I have an aftermarket head unit and this is the one i have http://www.cartoys.com/cdx-gt570up and i am going to install a amp and subwoofer and cartoys installed my deck but i just looked at the remote wire that i would connect to the amp and something is already connected to it and i do not know what that is. I believe that the wire color it was connected to was either yellow and white or yellow and green.
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