I posted that video in a side step thread (SRT side step thread form memory) months ago and another JG member contacted back then. Same story, they never replied to multiple enquiries.
I've been waiting on bee stop or AMP to make something for the grand cherokee. I'd like a running board but I think the current ones take too much away from the look of the vehicle .
Had a set on my ram. Regretted them 5 minutes into ownership. They creaked and needed grease on a regular basis. Stay away. It's a gimmick. Get a real bar if you need a step...
My neighbors '14 Limited F150 pickup has them from the factory and they retract a lot higher up than the ones in the video of the GC. You cant even tell he has them until the door opens.
I personally don't like that look at all, especially on a GC.