After brainstorming all night I'm pretty sure I can make V2V happen with that bar. There's no TT-30 adapter for the level 1 & 2 charger that came with my Hummer (old Hummer charger had an adapter pack that included one) so what I need is a TT30P to 10-30R adapter off eBay and a different dual level 1 and 2 charger (or buy a used old GM one). I could also just buy a Tesla portable EVSE which has lots of adapters. Problem is the adapter itself tells the box what voltage to use, so it's not just simple wiring.
EDIT: OH, and the myGMC app apparently wants me to pick every dealer in the country, one at a time, outward geographically from my GPS location, to figure out who has one that isn't out of stock. Because I really needed to know who had one that was out of stock. In any case, there are 4 left on eBay with 69 sold, directly from GM, if anyone wants one. I guess nobody else can use that app/website either. I paid $488 + tax and shipping by the way.
