My dad had a '91 blazer. Thinking back to how that stupid POS fell apart, your mirror falling off probably wasn't related to the subs!EZEroc said:I had that happen on a 92' Blazer I had a couple years ago. Mine was from the same reason, subs. Everything started fallen off that thing come to think of it. Never herd of it happening on the MO though. Might want to take the sub out before going to see dealer.