Riv - This may not be the solution you're looking for but here we have SBS Pop Asia which is a radio station that you can download on an app, assuming you can get it in America since it's just an app, you could play that through your car radio if you can connect your phone to it
. That's actually how I first found GEM, they play mostly Kpop but will play some big Cpop or Jpop as well and I've seen other artists from asia too but very rarely. They have a chart on the app too you can use to find new releases not just from Kpop. Maybe you guys have an American version of that or you can just download the Australian one. EYK do a 1 hour segment every week on it actually. They store all those segments too so you can play them after the fact later but you don't get the music breaks if you do that.