Maxwell Ultra-Cap's/Lithium cells hybrid pack

[BrianG]

Yeah, or a high-output alternator and a second battery. :(

I was actually looking at regulating the lights to a solid 12v even though they won't be quite as bright. That way, they won't dim when the electrical system goes from ~14.4v to ~12v when the bass hits. But a linear regulator would be large and toasty.