I have Google Analytics installed, and I would like to install Google Tag Manager. How do I install GTM and not lose my GA data? I know that normally GA is installed after GTM. Is there a way to add GTM  to GA? I think I am using the UA version. Or do I need to uninstall Google Analytics and start all over with GTM?
I have Google Analytics installed, but would like to install Google Tag Manager
google analytics;google tag manager