The dash kit is rather expensive, but if you want to retain the Bose, retain the whole system, it's easier. Use the RCA outputs of the Z1. Sacrifice a set of inexpensive RCA's so you have the ends and solder the ends onto the factory wiring. Remote turn-on for the amps is brown. Left front is blue +, brown -, right front is orange +, green -, left rear is white +, black -, right rear is yellow +, red -. I seem to remember the factory sub sums its signal from the mid/high amp which is under the passenger seat. If you want to use the sub out of the Z1, run an RCA to the amp in the spare tire well, using the purple +, and yellow -. Hope you have some time.....