Anybody here know the best way to remove the stock mirror mount from the windshield without cracking the w/s? I have a auto dim mirror with a compass I want to install, but the GM mount is a typical GM slide down mount, whereas the VX mount is a push and twist type mount. My only thought was taking the heat gun to it to try to soften the glue - I just don't want to crack the windshield in the process. Thought someone here might have knowledge/experience!