I ordered my power socket over the internet. It is very similar to the one in the link below. You should be able to find at any auto parts store or automotive section of Wal-Mart. Opentip.com: SeaDog DELUXE POWER SOCKET - 12V 426115-1 If you notice in the pic above there is a ring that threads onto the shaft of the socket. I removed this ring and traced the shape of it on the black plastic near the fairing. I then used my dremel tool with cutting bit to remove a circular section of plastic so that the socket could drop in. I attached the electrical wire to the back of the socket and then covered both connections with some stuff I bought at Home Depot called "liquid tape" which is essentially liquid vinyl compound that dries as plastic similar to electrical tape. I then threaded the wires through the hole and dropped the socket into place. The hole that I cut was snug so I had to work the socket down into the plastic. Once seated flush I tightened the ring on the understand to keep in place. I ran the wires under the gas tank and ran them directly to the battery. I also added a small fuse on the power wire just before it attaches to the battery. Since I am wired directly to the battery I have juice at all times even when the key is off. Some people may prefer to splice into a power wire that is only active when the key is turned on such as the tail lights. Regards, Rollin
Lots of options shown here and I've see Techmount used several times. I also use a Techmount Stem mount for my Zumo 550. I ran the power cable right to the batter with an inline fuse. See below:
I have a Garmin Zumo 550. I installed a $7 Radioshack cigarette lighter in the same place as Rollin_Again's 6th Gen. I bought a Zumo power cable from Powerlet with cigarette plug that is 12" long. That way I can switch the GPS from bike to bike. The 7/8" handlebar RAM mount fits perfectly on the 2 tank bolts behind the steering stem. The cigarette outlet is hardwired to the battery. I have a cigarette lighter dual socket extension I keep in my tank bag to run the GPS, charge cell, or power XM radio. The whole setup worked great on my cross country ride. Now I just need to wire up the other bikes and I'm set.