I have a 2019 Radwagon that has had intermittent power drop issues. Rad sent me a replacement controller last year, but I only got around to installing it last week... turns out they sent me a Wagon 4 controller, which just doesn't work on the 3.

Support from Rad has been unresponsive for over a week, and their phone and chat support doesn't exist any more, so it seems like I'm on my own here.

Also looks like Bolton doesn't exist any more or I'd pick one of their controllers up; other options I've found only work on models up to 2018... any other source out there for first or third party controllers compatible with the 2019 Wagon?

Even further longshot option: Anyone get a Bolton controller and have a spare original working 2019 Radwagon controller they'd be willing to sell?