My 2005 H2 sat radio will loose the signal for 2 to5 sec then work again for 2 to 5 sec. But later the same day it works perfect. Some days there is no problem. Some days no signal. Have tried refreshing signal many times. It didnt fix it. My Ford has sat radio and no problems so I know its not my location. Any advice on what is wrong and how to fix my H2.