New Rad City 5 Plus Controller Replacement-Is it an External Mount Now?

[salaryman]

Hi all - anyone purchased <or given replacement> the new controller for the Rad City Plus 5? My 2-year-old one is being replaced with the new design/upgraded controller. It should be shipping out this week, but I got the following message from Rad support after my order "our controller is a new undated design and will install to the rear seat post with the mounting plate included". This sounds like an external one, or am I wrong? A link to the video was included but the video is for the old design, where the controller is seated inside the downtube. If anyone has installed the new one and can share their install experience (or post a picture) that would be great. I'll report back once I figure out what I am up against as the video looks pretty intimidating! Thank you