College stations are usually the hold outs for non-mainstreamed music, in my experience. I was also a college DJ, so +1 for college radio, even if your tower can't reach past the parking lot. ;)
It's almost like there should be a station in every metropolitan area that is reserved for public access — divide the week up into 30-minute spots and let the public sign up for those slots to DJ.
Air time on AM is cheap, like super cheap, so often people rent their own airtime and do shows. Nothing amazing, but it does happen quite often.
This was long, long ago, but I believe we had something like a 10 watt tower.
REACHING THE BEACHES...kinda, STORMING THE DORMS, sorta. ;)