A gone crazy
 

New here, hi everyone.
I have a 2008 impala lt. My blend doors sound like a machine gun and it is random. Anytime I open a door they will begin clicking. After starting the car they will click for about a minute then stop.the clicking speeds up when the engine starts. Even with the car parked this will happen at random, the car can be parked all day and just start clicking for no reason.
I was thinking mabe a bad ground somewhere???? Also sometimes in the morning the radio display is very dim and after a few miles it brightens up. I also have problems with remote entry, sometimes the locks are too weak to move and other times its fine.
I can't be the only person who has experienced this. Thanks in advance