Cigarette lighter sockets are only "on" when engine is on?
Thoroughly annoyed that the cigarette lighter sockets are only on when the engine is on. I have one of those air compressors that fill up tires and whatnot using a cigarette lighter adapter. I even tried putting the key in the ignition, no engine start, and still no power. Is there a DIY out there that can keep these on without starting the engine? Thanks in advance.
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jms_w
'08 E93 M3 SG | BLK | 6MT
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