Electrical issues?

2011 XLT 4x4 standard shift,

Occasionally makes high pitched rapid clicking only with ignition off, stops if you put either turn signal or the flashers on. Signals work normally when running.

And something that just started yesterday, the radio turns up by itself. I watched it w my own two eyes. Only happens when something good comes on the radio and only in FM mode. Stock radio. Doesnt do it on Line in.

A/c compressor clutch works part time, I’ll turn the ac on and it comes on sometimes then it quits after I hit the throttle one time and then it doesn’t come back on until I get p*ed off and pull over somewhere to hit the clutch with something which always works. Now, it likes to kick back on right as I’m going to pop the hood and find something to hit it with. It’s like it’s playing fking games with me.

It does have 300k miles though. I don’t know if it’s something electrical, or if It’s just possessed or some s**t