I swapped out an oem 2007 radio I found at salvage yard into my 2004. Sounds great and all, but the volume dial has a brain of its own. Turn volume up, it may go up then down then up in one turn. Same with the bass/treble dial. Ive only found that pushing the dials in pretty hard and then turning back and forth sorta makes it "do right". Do these dials pop off? It's almost like they just weren't used alot. Or is it the other way around and it's worn out? Is there a fix before I toss this thing in the garbage?