thanks you 66 blue----------looks like both wires connect to one screw and the 2 from the clock connect to the other-ps-I removed my heater core-I will take it to the shop to rebuild and remove the valve I dropped in it. Also one bracket came off of heater core-I guess they can solder it back on-I dont know how it was connected-the core is retained by 4 screws that bolt from both sides with a bolt and nut. Also, the lid was loose again. Years ago , I tried to jb weld it. It held for a few years. I.m going to leave it off this time. Would you know where to get the replacement foam that was glued on the core?