How can I replacement reverse sensor on Renault megan scenic?

I have a renault megan scenic 07 and have no reversing lights and fog light l/h side, also alarm has mind of its own. Any advise much needed.
ian blackwell, October 2018


done
https://www.youtube.com/watch?v=XujKR26dQWk

Chicksfan, December 2018
link Click here to see other fixes for Renault Scenic.