I will be removing and installing a new left rear turn signal on my 05.  I am unable to look under the fender but able to feel under there and it feels like there is no nut holding it..  I ask this because I am still confined to a walker due to my accident.  I would not mind having a few suggestions on this.......It looks like I will have to jack it up or disconnect the lower bolts on the shocks to reach at least one nut.  It will be about 8 weeks before I can do anything.......Thanks!

I don't know if the routing has changed since my '02, but..
The wires are routed along the back side of the side rails (aka pillion handle), they never go under the fender.  The connectors are under the front seat.  The turn signal bolts to the side rail, not the fender.
IF you want to change out the entire turn signal, you just about have to pull the side rail.  If you have a sissy bar, you have to pull both rails at the same time.
To pull side rails, it helps a bunch if you jack it up and pull the shocks to lower the rear wheel.  OR find someone with real small hands who doesn't mind scraping the up!

Looking at the replacement it appears the light is held in place with the rubber grommet.....I will be taking the rail off since the stem broke into.....Should be a down hill job....... after busting a few knuckles getting the rail loose to see the layout. .  This was the only item destroyed in the wreck.