Any GPS systems seem to eat power like crazy. I like to use CoPilot since the maps are preloaded which will save data use. This might be more involved than you were looking for, but I installed a cig lighter/USB socket in a tank bag then connected it to the battery using a 12-volt connector that came with my battery tender. The tank bag is a SW-Motech that mounts to a ring on the tank cap so that it never touches the paint on the tank. This version of the tank bag has a clear window - touch screen film so you can mount the phone in the bag, connected to the power and still see it, and use the screen. I found the cig/USB adapter at WalMart in the RV section. It looks sort of like the one in the link below but only has one cigarette socket, does not have the male socket end (the unit I found was direct wire) and it cost less. Also, It is made to be mounted to a dash, or in this case to the baseboard of the tank bag. http://www.amazon.com/adapter-cigarette-lighter-splitter-MRS152UV/dp/B003RQBKLC Then I needed to extend the wires to get to the tender connector to the battery so I got an extension like the following, but at Autozone - also in the RV section. http://www.amazon.com/CES-Gauge-Quick-Disconnect-Harness/dp/B0057ZQJ12/ref=sr_1_3?ie=UTF8&qid=1420409266&sr=8-3&keywords=12+Volt+Connectors I use a Sena SMH10R headset in my helmet which uses Bluetooth so I don't need any wires to the helmet. I got that mainly to have intercom with the wife.