Well J.D.
Just my 2 pennies,
but Im sure you as any other young man will want in short order after gettin on the road a decent stereo!, we all been there ..when you find,swap,gather,or just plain go out an buy stuff to make tunes ..you will need a 12volt system.
I would suggest ya lean towards switchin over to a 12volt now so ya got that done when you hit the road.
Ya know the ladies like a kick arse' tune system...and WELL ...yaknwo what happens after that....just tryin to get ya prepped in the right direction.
Tim