I've taken my car to a mechanic and he never seems to be able to recreate my problems, but basically I have a 2002 s60 with about 140k miles.

Recently I've noticed a lot of electrical problems.

When emergency lights are on car will not unlock from the remote.

Periodically the radio will change sources or volume by itself.

The unlocks and locks back periodically from one button click.

The A.C. blows full on off and turns off on full?

Is this fuses or something I can fix myself? I would like to learn to fix my own car but will take it to a mechanic if I have to

Thanks for reading!