I might have been too aggressive in my cutting of the notches in the cup. Very possible. It is still usable. I put a tape in front to make the radio stay in place, very ghetto!
I will invest in an aftermarket power supply module to replace the one inside the dock.
Talking about these cheap adapters, the Baofeng RD-5R came w/ a better one than the UV-5R ones, that the AC adapter buzzes loudly!