Genos sells a add-on for wiring accessories such as this that is quite popular. PAINLESS WIRING KIT - 4 HOT/3 CONSTANT-Dodge Cummins and Ford Power Stroke Diesel Truck Accessories - Geno's GarageI am installing two two-way radios in my truck, and am wondering what the recommended way to tap into the under-hood power distribution box would be. The lid is flanged and I don't want to risk letting water and dirt enter there.
there is a tsb for that
i'd say +&- directly to batt and if you want to switch w/inigition use a relay our co. radios at work suck in thet pickups but work great in the equipment pickups are wired to the back of the alt.
Gotta love mine electricions