My kid hit the side of our garage, breaking the mirror assembly. I got one off ebay and need to swap it out. Can anyone provide instructions on what is involved? I need to replace the entire mirror, not just glass. Does the inner door panel need to come off? If so, how do I do that? I need to swap the colored caps on the assembly as well, any help with that is also appreciated. Thanks all. It's a 2016 St with power, non-heated mirrors.