Hey guy my future father in law wants me to put a 1500w amp and 12 sub in his fully electric golf cart he doesnt have a head unit in. He wants to be able to use just an AUX chord for his audio.. It has 6, 6volt batteries that are hooked up in the same phase. I can install a sub, amp and aftermarket HU in a vehicle with no issues. It's not having a HU and 12 volt DC power to work with that's confusing me! Please help, any advice wd be greatly appreciated