I used the Incartec harness, it was plug & play on my old Bose system. You should also have bought the Kenwood patch lead, again, a plug & play thing. The only wiring I had to do was snip & connect the blue wire on the car side & join it to the blue wire on the new harness for the aerial. Second was to ground the green wire behind the console, something to do with watching videos whilst driving. I've just Googled your part number but can't see if it's Bose specific, maybe someone else will know?