I posted this in the touring section, buthere is likely more appropriate

I purchased a Road Tech radio (AM/FM/WB/Aux) head from a friend who crashed his. I purchased the standard 1996 plug and it has three power wires. When tested the radio works fine. I am putting this on a 1995 Road King and I am wondering about rigging up the multifunction switches on the handlebar. Neither the manual nor the Harley data offers the pinouts on the custom connector for the functions. Does anyone have this or know where I can get this.

Thanks in advance, Patrick