question why do you need it and there should be a diagram on radio or in the manuals
if you buy the proper harness for your car it should just be color to color though
GOT AN ISSUE ON MY 08 SATURN AURA XR I HAVE THE PAC SWI-PS I PROGRAMMED IT VIA THE INSTRUCTIONS IT WORKS FINE ON THE AM/FM RADIO BUT WHEN I SWITCH TO ANOTHER SOURCE LIKE XM IT DOESNT WORK
mine is mounted on the headline right where the rearview mirror is. at first you had to speak up to be heard but i pointed it down at a angel toward the driver the seats rather than straight level pointing to back window. now it works good.