I checked out MBWorld and all of the direct-wired DIY projects involved dismantling half the dash to access a switched power source for the cig lighter. I'm not really wanting to remove all those dash panels.

I dropped the overhead lights and there are a number of wires for the lights and a small wire loom with six or so wires for the garage door buttons. Anyone know if any of those wires are switched (on/off with ignition)? And if so, which one?