Switched power source question

I'm trying to hardwire my PLX gauge and am looking for switched power source in the fuse panel in the cabin. Does someone know which cable I need to tap into? Thanks.

 

Headlights are switched power

 

My advise is to get at least a test light, if not a DVM. Cig lighter is switched, unless it was mod'ed.

 

+1....
Stay away from the headlight circuit.....

 

Anyone else have ideas? Surely someone hardwired a radar detector or GPS to switched power. Thanks.

 

^^^Your question has alread been answered. You can use an "add a fuse" in the cig lighter/aux power circuit and use that. It's already fused at 15 amps so any small in-cab toy will be just fine......

I'm going to be using that ciruit to trigger a 40 amp relay that will power up my aux panel under the hood with battery power. All lights and such will be relay switched and get power from the battery as well. The aux panel is just for switched power to trigger the relays.

 

cig lighter or best case go to the iginition harness...make sure you FUSE EVERYTHING you add to the circuit.

 

Ok, thanks guys.