Relays Tripping

I finally got my new 1975 308GT4 on the road and as I was driving I could hear some clicking sounds from the relays under the floor. I checked under there yesterday re-seating all the relays and everything looked fine. The car sat for along time and I had to toggle some of the switches to get some things working again. Any Idea what would cause this, bad relay, something shorting.

 

Your GT4 has these relays:
Main - provides power to radiator fans, window motors, heater fans, turn signals, and gauges.
4 relays for Headlight functions - discount those
Horn - discount that
3 relays for Radiator fans - possible but check if fans are on/off during the clicks

Chances are your problem lies with the Main relay. First off, notice if you are
loosing power to function mentioned in 'main' above to rule out the Main relay.
The main relay is energized by the ignition key which could be intermittent.

You could use a good wiring diagram which is what I used for this information.