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Per has got it :-) Go here: http://www.kersur.net/~btillman/bob/garage/vw/side_marker/index.html and see the two sections, "Wiring Overview" and "How It Works". Similar situation and helps to understand how electricity 'reacts' in the circuit. And yes, I did do this mod to my Jetta and a friend's Jetta ;-) Toby Erkson -- air_cooled_nut@pobox.com '72 VW Squareback, '95 VW Jetta, '81 Gold Wing http://www.icbm.org/ Portland, Oregon ----- Original Message ----- > Basically, it has to do with the internal circuits of the hazard light > switch, and the fact that the turn signal indicator light (in the fuel > guage) has constant power with the ignition on, and is grounded through > the turn signal bulb filaments. ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org