sorry for reviving an old thread, but this was very helpful since I will be adding a GPS to the N1K. I figured my best course of action would be to use the heated grip connectors to power the GPS (I don't have/need heated grips). What I'll do is solder in an SAE connection to the bullet connectors on the heated grips and also solder another SAE connection to my Garmin's AMPS rugged mount. There is NO voltage regulator built into the Garmin Rugged Mount cable! The Garmin Montana can be powered by up to 35 volts without damaging it. (10 to 35 volts according to the manual).