Thanks jlanka, but can I get clarification on your comment: "Front 2 speakers wired in, and the rear 6 plus sub all connected via RCA". Are you saying that you only needed to splice the color wires in the old harness to the new Fusion harness (following the manual), and that the other wires (remote cable, Sirius tuner cable, rca plugs for amplifier) coming into the old Kenwood simply "plugged in" to the Fusion? Just to confirm that we have the same setup, I am attaching the wiring diagram of my unit that I got from Formula TAG. My unit has Sirius, a "switching unit" that connects to the ipod connector, the CD changer, and the two remotes (dash, swim platform). If we do have the same system, does all the old equipment (remotes, CD changer, ipod, amplifier, AUX jack at helm) work with the new Fusion head unit using the old wiring (except for the new harness)? PM me if you prefer we talk by phone to answer all these questions. Appreciate the help.