Power connector: LEMO FGG.0B.304.CLAD52Z
The two pins by the key are ground.
The two pins opposite the key are +12v DC.
The factory power cable has a 3 amp fuse in the cigarette lighter plug. If you build a cable, be sure to include a fuse in the power circuit. Also note that the solderable pins inside the LEMO plug are tiny, so have someone with experience solder them.
Last updated: January 8, 2013