http://cygnusx1.net/Supra/Library/TSRM/MK3/
hope this helps. everything you need to know about mkIII supra's. you might even try posting at supramania
the electronic wiring diagram link is at the top right of the page
where did you tap in for power and ground?
mine would do that while running if I pressed the brake. Someone on supramania said to change the ground location, now it works perfect
yeah, thats what i had thought, the tire kingdom by my house is uttery retarded. everyplace in broward ive dealt with do it. i think its just out here in west boca.
thanks for the suggestion, gonna check them out