Thats lots of issues, Redngoo. There are so many issues here, no way to diagnose something like this on a message board. There was a post about putting in a cutoff switch. Certainly not accusatory, but have you changed some things or messed with the electrical? Added a component or something? I dunno but it sounds like the voltage in the system has dropped to a level some of the components wont work. This could be through a ground or other impedance. Id start at the battery and work back. Starting with battery voltage.