When on the bike, the music connection (jumpy) is very poor and I loose control of the music via the cell phone ( I have to power cycle the SENA unit to shut it off).  However, when I'm inside, there is no issue?

I have a Motorola Droid RAZR M Xt907 smart phone. 

Any ideas as to what's wrong, noise from the ignition system?  I'm riding a Yamaha FZ-09.