The wiring was pretty easy, I put a spade connector/wire in the m12 hookup here: [ http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=1019759 ] which was just above the fuse panel. I ran the wire under the door sill to under the seat, then ran it through the middle in the existing hole in the floor. I also put a ground right next to the fuse box on an existing hole/ground.
I ended up just pulling the seatbelt wire out of the bottom of the seat and plugging the one from the car in directly, then using the spade connectors where they belong on the seat. Everything is wired up and you'd never guess it wasn't factory.