I wanted to take a moment and say hi! Just picked up a brand new 2021 on Friday.....Yes, it is brand new and a 2021. So far I have installed the Honda roof, SuperATV windshield and a rearview mirror. I know I want a winch and some type of stereo in the near future. Any recommendations for those two items is greatly appreciated (I have started to look at threads on those topics). My first question is this. At what point do you have to add the additional battery?