Audi A6 Avant / Allroad Cargo shade fix

This thing to fix Audi A6 Avant / Allroad (MY: 1999-2005) Cargo shade retraction issue. After years of use usually the cargo shade shaft's retention spring plastic holder broke, so the cargo shade will not retract anymore. This part is designed to be a sturdy base for holding the shaft.
Here is an article about the issue and also some fix ideas if the plastic holder is still in place:
http://www.audizine.com/forum/showthread.php/464749-DIY-Fix-a-broken-cargo-cover.
Update1: Also uploaded