I believe this is the kit you want:

http://www.scosche.com/scosche/connectors/FDK2.asp

Allows you to use a high power head unit connected directly to the car's original speaker wires. Provides all the connectors so you don't have to cut up your car's wireing. Also, this kit includes the FD07.

 

thanks buddy. I just ordered it, hopefully it will work.