Hi I'm having an issue with the door, headlights, ignition warning bell, dinger, ringer, buzzer or what ever else you want to call it. Anyway when it works the left front speaker is scratchy and can not handle much bass or volume from the radio. When it does not work, the speaker is clear and works as advertised. Is there a relay or some type of module that controls them?

The fuel gauge is erratic once it gets to about a 1/4 tank.

Thanks for reading!

 

Many times when we get weird things happening like this it can be caused by a faulty ground connection somewhere in the ground system.
It might be a good idea to start at the battery and look under the connections there for corrosion. Then continue to every ground connection you can find and at least loosen the connection and retighten it to insure the integrity of the connection.
Something to keep in mind, when the battery cables are disconnected the computer loses some of it's memory. Things like radio stations, memory seats and mirrors may need to be reset. As you can see many things are affected by a small voltage drop and crazy things happen. Also when you remove the battery cables to check and clean at the battery, touch the two cables ends together for a few seconds then reconnect them to the battery. Let us know if this gets rid of the problem.