I can not tell you the color of the wire (it has been a few years) but if you remove the cover below the wind screen(four screws) you will find a main connector with several wires. I found one that was live with the key off and spliced a fuse connector(1.5 amps) in the line and ran it to the steering column and under the left handle bar cover to my Garman. I elected to have power to my gps at all times,this is not right or wrong but just my preference and it works for me.
I recommend you solder all connections and be careful runing the wiring. Hope this helps you. Howard