I want to add a basic 12v "car stereo" to my enclosed trailer, composed of a head deck and two 6×9 speakers. I have two 6v golf cart batteries connected in series (12v total). I’ll use 2′ maximum of 10awg wire to a fuse block with a 40 amp inline circuit breaker between the batteries and fuse block. I’m using a circuit breaker so I can shut off power to the block when not needed. The only foreseeable add on off the block will be two LED lights drawing a max of 2 amps each. Following so far?
From the fuse block, I will use 16awg wire (larger than the wires coming out of the unit) to the head deck for power and ground, maximum 10′ run. The head deck has a 10amp fuse built in, will also use a 10amp fuse at the fuse block for this run.
From the head deck, I will use the same 16awg wire to the speakers (again, larger than the supplied head deck wiring).
-This all looks good in my head. Am I missing anything?
-Will regular electrical wire suffice from head deck to speakers or do I need to use "speaker wire"?
-The head deck has power wires coming out of it for ignition power and battery power (presumably for using a relay while plugged into an automobile). Should I connect both of these to the fuse block, or one or the other? Which one(s)?
The batteries are hooked to a charger while the trailer is connected to shore power.
