I've recently installed an aftermarket Sat Nav which fits nicely into the dash the Vol and Program selector buttons work well from the steering wheel via command, on the Sat Nav itself there is a Bluetooth Ans and Hang up buttons on the front, I have run 4 wires from both switches internally so If for instance switch A is shorted I can answer the phone and the same for Switch B, what I need to do now is work out is which wires in the loom come from the steering wheel for Answer and hang up any ideas?
