Hi Seth, got your PM, can't seem to reply to it.
Ended up moving my GPS mount from the mirror stalk to the inside of the Givi flyscreen by flipping it over, mounting the AMP adapter to the back and then attaching it to the Givi bracket.
Here's a pic, I've since massaged the mount and flyscreen so that it sits a bit higher and to the left, exposing the entire screen. This was important, on the Garmin vehicle speed is posted on the bottom left corner and my speedo is wonky.
Also moved the USB outlet to the left, between the handlebar mounts, too much of bend on the Redband cord.