Unfortunately i havent had to chance to see these units in person, but i cant imagine it would be too hard to find something to act as a towing point. as far as belt removal goes it shouldn't be too hard, similar to the belts found on some motorcycles. And lastly, the only marine grade audio components im aware of have no video inputs. However, i was able to come up with this from a quick google seach. http://www.visorview.com/trailer_cameras.html
while I wait for my Slingshot to get delivered to the dealer.
Just finished spending a lot of time with my nose buried in the slingshot book. Looks like Polaris has an accessory that includes a rear view camera and full audio system for your base model. This is the kit that comes standard on the SLBryan, I have found similar units, but the displays all seem designed for a vehicle's enclosed interior. I found a couple of rear-view cam systems designed for motorcycles, at least one of which appears to have a water-resistant display (the other claimed water-resistant, but recommended the display be wrapped in plastic wrap). Unfortunately, I need to relocate the link because I don't remember it.
I'll keep searching as I still have too much time
