Velodyne DD 15+ (Digital Drive 15 plus) amplifier plate replacement?

I acquired a Velodyne DD15+ and the RCA inputs are VERY loose and cause a loud hum sometimes if the wire is touched.  It's like the internal bracket or screws are not fitting.  Does anyone have one of these amps laying around or know a good Velodyne repair place?

I've inquired about a new one from Velodyne but it's expensive and they have to ship it from overseas.  

This is such a great sub I hate for it to be sick.

Oh, I've taken the amp out and there's no way on earth I can get to these connectors without significant effort or risk without the right tools which I don't even know what tools that would be.. They basically stacked three boards on top of where the connectors would be found.

Thanks!