It's actually 4 gauge awg thin strain tsunami wire. I pulled from a car that had a audio system in that we got in at the dealership.

I have over 12ft so this is my first option. We have a tractor trailer repair shop in Harrisonburg that a friend says sells thick wire like what I need.

Lowes has 2gauge thick strain wire but is used for wiring houses, so I did not get that.

I figure the more strains in the wire the better off it would in passing the current.