I thought they didnt make a harness for the celi...or maybe its just the GTS. I know I hard wired mine what a pain
that was like atleast 2 years ago...
in summer of 2001, I picked up all the parts needed from Mobile Fantasy and had a Kenwood installed.
in summer of 2002, I removed the Kenwood and the shop charged for another wire harness for the Clairion that was then installed.
I still have the Kenwood with wire harness attached... someplace at home