i made an attempt today to run a 4 flat wire int he front of my pickup spliced into the rear tail light harness. and attach a 7 prong to the end sticking out the front so i can hook up to my tow rig. it made sense to me at the time, and i havent looked at the wire diagram in my not so trusty chilton. i think i may have popped a fuse, or blinker circuit because my blinkers dont work anymore. i gave up since it started to rain/snow again. just wondered what you guys do for lights when you tow bar. i was trying not to run a second set of tail lights.