I wanted a small, easy to use power connector to power my GPS and other low-current devices either on my RCU shelf or in my tankbag. This readily available power jack (Radio Shack) takes up very little panel space and there are several viable mounting locations on an RT panel. Matching plugs are available to install on the devices you wish to power. These are the same type plugs used by almost every piece of low-power electronic equipment that comes with a small power "brick". There are several size available but I chose the most robust in terms of power handling.
Mounting hole in the dash is 7/16" and a hex nut secures the panel mount connector from the rear. Less than 1" of clearance is required behind the dash to allow for the wiring so quite a few suitable mounting locations exist.
I'm giving some thought to mounting several of these plugs in a small plastic utility box (approx. 2.5" x 1.5" x 1") and mounting the box under the RCU shelf to feed the GPS and tank bag electronics...sounds like a winter project. Never seem to have enough power feeds for FRS, CD, etc., and these are nice and small.
Radio Shack part numbers are 274-1573 for the plug and 274-1576A for the receptacle. These connectors have rather small solder lugs, so you will need a soldering iron with a fairly small tip. Also, it would be a good idea to plan on heat-shrinking the connections, not only for insulation but also for support it would lend.
This receptacle/plug combo would have problems handling current loads above 5 amps, so be aware of this limitation.
I put some silicone grease on the mating plug and in the connector hole to minimize the chance of any corrosion...no problems in 3+ years of use.
Power for the receptacle is obtained from the factory receptacle wiring located adjacent to the new plug.
Any questions, email me at: bmwrider@large-screen.com