mazda23
+1y
i wired in a switch for the compressor. i have a pressure switch as well. i went to turn my truck on and i blew the fuse. my question is do i need a relay like i had before for the viair or can i just run a wire to my switch from the pressure switch?? right now i don't have a relay. and also does my presure switch ground through the tank because i have the switch on the positive side? o and my switch was turned off when the fuse blew