Finally got around to see what is wrong with my bluetooth and after a hell of a lot of research....turn out my 2002 model has a 2001 radio head unit so I need an amp ELK800 to boost the volume. Does anyone know where to add it to the 54 pin harness? I need to 4 wires, 1 for + power, 1 for - power and 2 for the speakers. I figure I need to splice the wires to add the amp. If anyone has knowledge of which wires I need to look at...I will be very grateful.