So now that I'm divorced and don't have a selfish wife telling me I can't buy stuff (it wasn't for lack of money), I'm considering getting a subwoofer in my van. Probably a single 12" because I've had a single 15" (before injury, different vehicle) and I didn't like it as much. I currently have a 2011 Toyota Sienna with Braun conversion (ramp, driver/passenger 6-way transfer seats, no middle-row seats). Does anyone else have this kind of setup? Do you need a new alternator? Or just a capacitor? Or neither?

Yeah I'm almost 39 and going on 18...