What I'm going to do is swap sides with the speakers and see if the problem persists. My next thing would be to check the line levelers. Trying to stay away from taking the fairing off but it may lead to that.
Ha - you know you've got the 'bug' when you get to the point that you can pull the outer fairing faster than you can fill up with gas...
With the rca hooked up put a small dab of silicone on the outside cone of the rca, enough so that the silicone touches the amp. This keeps rcas from backing off. A very common and easily remedied issue.
Wish I would have thought about that beforehand. If it happens again that's what I'll do.
I did notice that that you had to put a fair amount of force to make them seat in the amp. Probably wasn't done when everything was installed. I'm just glad it wasn't something else. Takes over a week to get new parts from them because of location.