I just bought the HK Radio for my ’07 FLHT, I bought it in Los Angeles and I live in Mexico City, the thing is, I installed the radio as the instructions said and work fine, all functions are working, but have an issue, every time I turn on the radio the LCD displays RADIO NOT CALIBRATED, and every 20 seconds there is an annoying beeping on the speakers, is there any way to calibrate the radio directly in the radio? Do I have to take the Bike to the dealer? The other question is, what do I have to bought to install the antenna? It seams to be lots of different antennas but none will fit FLHT Thanks in advance for your help.