2005 Harley Davidson FLSTC - FLSTCI Heritage Softail Classic "rear fenders" Questions

Rear Fender Running Light - how to change the running light on my rear fender no longer lights up. I assume that the first thing to check is the bulb, but I do not see how to get to it. This is the ...

...the other one back thru so I can attach my seat back? You will have to get you hand up between the rear fender and tyre to push it back through. You might also be able to do it by holding the ...