After months of waiting, SunRail map and route information is now available on Google Maps (Website).
You can input a starting point and a destination and click on the public transit icon to get directions via both SunRail and Lynx.
Lynx bus route information has been on Google Maps for sometime now, but the addition of SunRail allows for you to easily plan your route using both services. Since SunRail and Lynx provide free transfers this new tool should be helpful for many riders.