I was initially frustrated that the plug was difficult to attach in the holder, however I got it done.

I had a little problem getting the plug through the slot but with a little work it all came together and made for a neat package.

The plug is a little difficult to get through that portion of the mount, but intentionally I'm sure, as I have other mounts that are similar for other devices and they do work their way loose while hanging for whatever reason

After having difficulty inserting the plug into the holder on the first unit, I used a small file to slightly round the edges of the mounting hole on the second unit, making for much easier installation