I have my switch box hooked into a 12volt acc slot under my dash. I was wondering if it would be possible to hook up the acc wire for my relays to the same place?
Depends on what you are using the acc wire for? Just as a trigger for the relays or to supply power to the relays? Just as a trigger to turn whatever on when the key is on is fine, but probably not sufficient as the power for the relays. What are the relays for?
Im using it to just trigger the relays. The relays are to turn my compressors on with a pressure switch.
You are good to go then. I do the same thing so my backup electric compressor will only run when the key is on.