Hi, Having recently bypassed the R2 Connection block due to water ingress, I though I would share the layout/Wiring diagram I created.
The Supply side seems common to all Scenics made between 2003 & 2009, but the load side will be version and equipment dependent.
My version is a 2006 Grand Scenic 1.5dci Expression with EPACK equipment level.
If you have any questions, please feel free to ask.
Enjoy.