Buzzing is good, its when it stops buzzing you have a problem..lol BTW you guys have the operation between the relay and the OP switch backwards.. the oil pressure switch is a backup for if the relay fails. The relay is always energized buy the ECM after the key is on.

 

ok so i was able to Solder the connections and heat shrink over the solder works great and the buzzing stops after a few seconds like it should yay thanks guys for the help