Need advice regarding seat belts
 

Hello. I had to remove front seats from 89 535i and seat belt had to come out with them. OF course seat belt rolled all the way in and now i can't get it to come out :nono:. Previous owner sad that those seats r from 7 series bmw. What is the little secret that will help me pull the belt out of the "thing that roles in"..:P...:)?
Thanks!