So from that diagram I need to run the power through 85/86 and the earth through 30/87 correct?

Wanted to run the power seperate to the loom as the ceramic draw a bit of current, figured a more powerful source from the battery through a relay would be better than the puny acc blue/white wire used originally. Didn't want to melt the wire if draws too much current.

Relays prob not required if the switch is the earth now