I bought one iRock adapter on RadioShack and it was 30 bucks throwed down the garbarge...at first ir did work, but in my city there are a lot of radio stations so it was kind of difficult to make it stay in one frequency and work at all. Then it just died, I changed batteries, etc but it just not work, I turn it on and it turns off in seconds and I can get it to work...I hate it.