Quote:
Originally Posted by rick3000
"I am going to be running a wire from the 12V phone connector to the front bumper for some custom running lights.
Do you think I could use this power source or would it draw to much power? If it does draw too much power how would I go about tapping directly into the battery?"
Does anyone know how I would tap into the battery or if I would need to?
Thanks again! 
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I would suggest running the horn direct from the battery. It's fairly simple. You want to wire the battery to the input terminal of the relay (#30/51), the air horns to the output terminal of the relay (#87). Then use your OEM wiring to trigger the relay by wiring it to the trigger terminal (#86). Terminal #85 is a common ground.
Use a med. gauge wire (16 Ga would be good) with an 'O' ring crimped on one end, add an inline 15 Amp fuse to the wire and a female spade connector on the other. Slip 'O' ring through the bolt on the pos (+) battery cable terminal and attach the spade connector to terminal #30/51.
Here is a page that will help. It specifically wires in an aftermarket air horn (though for another vehicle) :
Air Horn Relay