Hey guys

I have a 2005 20v and they control box for my taps has been bad for a couple years now. I contacted Lenco to find out the have discontinued the original and the replacements boxes and don't have a solution to my problem. Anyone have a wiring diagram for a three position rocker switch to bypass so I don't have to touch the wires back and forth to the spare battery anymore. I do know ill lose the taps guage but I visual adjust anyways. Thanks in advance.