Wow, I haven't seen a real drive-in in ages. I didn't know they did that trick with the FM radio these days. That's such a great idea, now I want to find one of those drive-ins as soon as possible and try it out! That would so totally rock to have great stereo sound in the car at the drive-in.

Do they let you idle your engine at drive-ins? Then I could even control the temperature of the inside of the car. One of my pet peeves about movie theaters is that they are always too cold, uncomfortably so.