Good Morning

Coffee Good, Thanks Dave! My Wife is doing Great... she's running round like a jack rabbit... disinfecting and cleaning the house... whooh-wee... I'm Happy-Glad!!!!
I got a question Bill, installing the Power-Pro , do I need to disconnect the battery before or after I turn the key on ? and since I'm swapping controllers could I just unhook everything and leave the key on while I'm swapping out controllers, then turn it off before I hook up the battery... It will take a lot longer than 30 min. for me to swap out. I really appreciate your advice.
Now Ya'll have a Blessed Day!