Wiring a '53 GMC 1/2 12 volt -- The new harness I'm using has no hot/batt connectors for the heater blower switch and the e-flashers. Do I need a terminal block or something like that or should I just connect back to a batt source on the ignition switch or headlamp switch?
Also the new heater blower switch has B terminal and an M terminal, assume B is for Batt/hot what is the M for?
John
