Five minutes with a scuff pad, masking tape and rattle can will accomplish what you seek.
Yeah I know what you mean but I am seeking a different option, I want to keep the turn signal and just eliminate the chrome.
I don't think you know what he means...
Paint the chrome black.
Easiest thing to do would just be plasti-dip. If you wanted to change it permanently, take the mirror apart and pop that chrome piece off the light. Use Easy-Off oven cleaner to remove the chrome finish (believe me, it works) and then paint it