aftermarket amp in Escalade w/stock deck

Im having sum problems installing a aftermarket amp in a Escalade EXT wit the stock deck any suggesting where i would find wiring diagram for remote lead an singnal lead?yo, was gwanin

hey, the signal you should be grabbing at the factory sub, it is an 8 inch pice of crap in the center console. there will be two wires connected to it, grab the input there if you installing a sub, as every other wire in the vehicle is crossed over.  The console is a pain to get apart but it is the best way to make your customer happy wither their bass.   btw, the sub input is already amped so it will give even greater signal to your aftermarket amp.