The last 2 times I have been on bike and had the radio on, it would drop to 89.7 FM from 107.5 FM by itself. Cannot be able to use preset to get back to 107.5. When I hit preset, it goes to 107.9, then have to use step down button to get back to 107.5.
Early this summer took connections apart on sound system, used eletric spray cleaner and then put dieletric grease on all connections. Haven't had any problems up until now.
Any ideas??
Don H.