I have a 3rd seat in the back of my 97 Volvo GLT Wagon. The back (upright) part of the seat has a release knob/tab under the headrest on the right side that allows the seat to be returned to the flat position. Well, mine does not work. I have to do it manually by reaching behind the seat and forcing the locking spine to release. This takes quite a bit of manual dexterity to turn the mechanism slightly and wiggling it out of it's locked position. Needless to say, this is quite a pain. I use the 3rd seat for car pooling and need it down for golf clubs so this gets repeated a few times each week. I assume that the previous owners had broken something in the linkage between the release knob and the locking spine. Does anyone have a solution (beside buying a whole new seat)? Does anyone know how the linkage connects the release knob to the spine? Thanks for any information that you can provide!

JR