I have a 1993 245 I've been driving the past 2 years. There have been no issues with the windows but Sunday I left to do photos at a Porsche club autocross and the windows worked as usual. When I left the venue they did not. What I've checked so far--power into and out of the fuse (#10) -- but no power at the window switch. I've also manipulated the wire harness from the body to the door to see if a broken wire could make contact - no difference with a test light attached. I ran a jump wire to the switch and the windows work. My next step (I assume) would be to check at the relay -- but that's my question -- where is that bugger located? Thanks in advance for any input. -- Dave