So I swapped out my stock radio for an after market one and some subs. My problem is that when ever I turn the beat up, my rear view mirror moves uncontrollably. It gets to the point that I can't use it and have to reposition it all the time. Anyone have this problem? Is there a fix I can do? Should I just replace the rear view with an after market one? I have a 2001 Impala with Onstar which is currently disabled.