Double Passenger Front Seat Broken. What Are These?

[RattyMcClelland]

So the plastic piece was bouncing around my subwoofer under my seat and now the seat won't close flush or lock.
Where do these pieces sit?
The metal spring I can place in the centre hole from the underside but even in, the seat won't sit flush. The plastic piece I can't figure out at all. No where for it to go.

Any one got pictures of theirs for reference?
IMAG0067 by
IMAG0066 by

 

[Jack Masters]

Not sure if you’ve resolved this yet, but here’s some pictures to help you (my double is currently sat in the living room after switching for a single seat).
Looks like the H-shaped spring is why it won’t lock into place, and the corner triangle shaped piece is why it won’t sit flush.
Hope this helps

 

[RattyMcClelland]

Excellent. Thanks alot. Looks like I'm missing one of the 2 pieces on the side. I'll look around for it.