Ghetto tech here(I had 5 minutes to figure something out last minute):
Take a tarp. Pull it under and over the roll bar and back to the cab.
Line up the two outside holes on the cab with a couple holes on tarp.
Bolt in with washers. Trim tarp. Poke 2 more holes for the inner holes.
Line holes with squares of duct tape. Top off by sealing sides with bits of duct tape. Tada. 5 minutes and now the dogs are in the shade!