Took out the rzr all weekend camping and no issues. The last ride I went to start it but it didnt crank over. I could hear the clicking going on but no lights to the dash or anything. Started to get the booster cables but I thought I’d try a couple more times first. 4th try it fired right up. Did a tour with no issues. Shut her down and cannot get it to start now. We tried boosting it with a truck and nothing. Fuel pump doesnt even start. No stock lights. No speedo movement or light. But the aftermarket lights work.

So we figured the battery must be fine because the accessories work, plus we had a truck battery boosting it. Thinking maybe faulty key switch? Or fried the cpu? Or bad connection at the battery terminal? Any help is appreciated guys.
Thanks