I think local stations should get on board with Nextradio. Be sure to hype the list of Nextradio compatible phones on station websites/FB pages, potentially getting people shopping for a new phone.
Also, there may be some Tracfone/NET10 phones that have FM radio too. Tracfone offers the LG 'Sunset', but doesn't mention FM capability:
http://www.tracfone-orders.com/bpdi...1464055725&productVariantExtensionId=45987419
Here's a spec page from LG itself regarding the Sunset mentioning FM radio capability:
http://www.lg.com/us/cell-phones/lg-L33L-sunset-lte.
I wouldn't imagine Tracfone asking for the feature to be disabled. Assuming you could get procure several, this might be fun giveaway idea.