I use one like this, and I mount it to my left mirror post:
https://www.amazon.com/dp/B01GV00YBM/re ... QEb9329024
I had it on the left slope of the handlebar next to the brake reservoir at first, but it’s in a much more natural to use position on the mirror post. Unfortunately not a lot of useable mounting space on the Forza handlebars with the brake reservoirs where they are and how close they are to the bar.
Instead of headphones, because I like to hear what’s going on around me, I use this mounted on the right side slope of the handlebar:
https://www.amazon.com/dp/B07HQ9Q2VL?re ... b_ap_share
With this as the Bluetooth speaker mounted to the above clamp, centered perfectly over the Main handlebar head clamp:
https://www.amazon.com/dp/B07VV2B4JD/re ... QEbXB2PSXP
It’s actually quite loud, and great for cruising and not super obnoxious unless you’re pulled up right next to someone at a light. The mount allows you to point it right at yourself, I can hear it with my full face helmet up to about 50 MPH and with my 3/4 helmet I am hear it cruising the highway at 70 MPH, but just enough to tell what song is is, can’t really make anything out haha. It was a surprisingly a pretty successful solution for jamming tunes on the scooter without getting the type of setup you have to wire to your battery and run wires for.