I recently received my Gaptech Remote Controlled Hood Plus (RCH+) module and installed it today. Maybe 20 minutes total work, and I was being cautious.
The module works perfect. I posted a video of the operation. I must say this is a fantastic mod for anyone with a convertible Z4 or Z4MR.
In the video I was holding the unlock button, or the lock button...but I guess once you engage the sequence...there is not need to 'hold' the button as I did in the video.
Shipping from the guy in the UK was very very fast!
http://www.gap-tech.co.uk/rchp.html