After mor googling, I have found 4 of the 5 solenoids easy to get to. #5 however looks to be a pain. It is the torque converter lockup solenoid, and it is actually inside the transmission, not just behind a pan.

From what I could find out you need to drop a plate just behind the pan. But you need to be careful because of parts that literally balance as you drop the plate. You need to keep these lined up so you know how to put it back together again. Also there is a gasket for this lower plate that I do not know the name of.

This should be fun!