I bought a Kenwood deck to go in a 2000 Mustang. I want to install it my self. I got every thing I needed, or so I thought. The guy at the Best Buy install bay said I had to bypass the factory amp. In the Mustang it has the deck with the tape player and the CD player as seperate units. The wire harness I have has two connections one black and one gray. Now, I do not know where to plug up the black harness. I unhooked the factory amp completly. Does anyone know where I can get an install guide specifically for a 2000 mustang with the premium sound package? Thanks in advance.