I just barely caught my mirror on my garage backing in and it completely disassembled my passenger side mirror on my 2009 Tahoe Hybrid (Powered Mirror, Powered Fold in), I was able to snap everything back in place and it's functioning, but the mirror glass itself broke off with the ball mount broken off and stuck in it. I see a small puck shaped piece that had the ball mount on it originally that looks simple enough to replace, however, I can't find what that piece is called so I can try to find a replacement online. Is it even possible or does the entire mirror assembly have to be replaced?