I have a wired remote that slips into a mount on the rear grab rail. No perm. mount. Just slip in and play. When not in use, stores in a mount in my engine compartment. I'm not one to drill holes to mount stuff, cause never fails I want something different next yr.
The cruiser I have the RF remote. Works nice for being on the dock a couple boats away, however, it has a delay of a few seconds, so kinda hard to tweak the volume up/dn just a hair.