Map Linking and adding Onclick event to image for mobile

I have a map image that I am trying to add an onclick to the link to open a map in the user defined preferred map app on their mobile device. I found this to reference but I am having trouble wrapping my head around this.

I add mapsSelector() to the BB Photo link box it works great opening the default mobile app on my device. How do I add an address to this instead of the link finding my location? I am assuming I need to add Longitude & Latitude to the JS but I am not getting it right.

Any thoughts?

Just use the address?,Exeter,UK