I currently run a 2015 GSA and have the Autocom SPA fitted. It was dealer fitted along with the Bluetooth module when I bought the bike. The unit just about slides under the rear shroud from underneath the rear seat. I'm now trading in for a 2017 GSA TB and awaiting delivery. I believe there are more modules in that area which will take up scarce space. Has anyone else fitted the SPA on a 2017 and had any issues?