Can anybody hook me up with the piece that holds the antenna to my fender? It's floppin in the breeze and driving me crazy 
Is it just wobbling around(little movement) or flopping around (significant movement)?
If flopping around it is likely the plastic mast section below the fender is broken, not uncommon. The lower section bolts to the iner fender,(Pic is of mast section behind the fender)
and will often break near the top of the fender.
If yours is broken, you can either buy a new antenna or come up with a fix like I did. I use about a 4-5" section of 1/2" hot water PVC pipe, w/about a 1/4" section removed, which basically acts as a splint.
You could glue it on if you wanted to, but no need to. I have used this fix on several antenna's(about 10), and it works w/o issue.
This pic is of a broken one installed with the PVC splint, you can see the PVC pipe at the top of the pic.
