It's a 12v outlet, originally intended for fans or reading lights, sort of left-over from the days when trailers came with clip-on fans
The connection inside isn't threaded, it's actually a 1/4" jack socket, (a "guitar jack"), the tip being +ve and the sleeve -ve .. you could probably find some fans intended for auto use, and change the connector
__________________
IanP, the man from Scotland
Julie, the Lady From Little Rock
Jay Feather 19XUD, pushing a Jeep Grand Cherokee
|