Am thinking about adding a 2nd radio mounted in my utility body with speakers on each side. It would be nice just to pop open some doors and/or lift a top lid to get some tunes. Don't like opening windows and turning up radio. Has anyone heard of this being done?

Where would be the easiest place to pick up power? Have twin Alts and Batteries. Would rather not come from inside cab for power.

Just run power from the battery, but it could be turned on at any time so don't forget to turn it off and keep it locked so no one runs your battery down. You also want a good seal on the door so that a bunch of dust doesn't get in it.