How to replace "CU convenience" (ref : J519) on a SUPERB II

Good morning,

I would like to replace the CU CONVENIENCE computer module  (ref J519) located under the dashboard.

This seems very complicated to access to this module, with relays located upper and lower the unit, 

without unloading a lot of trim around it (small glove box, etc ...), quite impossible to do a first time

for a poor mecanical experienced guy.

New member, I don't find anything on this forum, on this subject, somebody could help, thank you very

much.

Nota : The J519 seems out of order, because an alert on one light is alway on, and it's no more possible to open the rear

twindoor (cables seem in a very good condition, i quite never use the small open door, in twelve years, an I have tested

motor lock and the two switches contacts, they are ok, the lower lock is ok also)

Thank you, bob92.