marcopol
Registered user
I need to install a Stiebal 139db horn and a set of spots. Both have relays and need a 12 volt supply obviously. I have the fuse box off and can see loads of wires going up into the current set of fuses. How do I tap into one of the 12 volt sorces here or even create a new source. ?

I think that's what Digger meant......use the relay, feed it to pin 86 from the horn supply and take the power to it through a fuse from the battery directly....

