GMT800 "floppy" front-row DVD headrests (Yukon XL Denali)

[chrispitude]

Hi everyone,

 

As it turns out, RockAuto.com sells Auto Custom Carpet (ACC) stuff, and they sell it *cheap*! My mechanic is replacing the carpet in my 2006 Yukon XL Denali. While he's doing that, I need to make a decision on what to do with the floppy front-row headrests in my truck.

 

I bought this truck used in 2013. It has the DVD dual-headrest entertainment system:

 

 

But there's two weird things going on:

 

• Both headrests are floppy - they tilt loosely forward and back, with no friction or lock to keep them in a position.
• There is a lump in the front of both headrests when they're tilted backward. If I press on the lump, I feel something hard. If I tilt the headrest forward, the headrest tilts "into" the lump and it goes away. If I press on the lump while doing that, I hear a crunchy plasticy noise from inside.

 

How are these things supposed to work?

 

I'm contemplating replacing them with non-DVD headrests from a local salvage yard, as my kids both have their own tablets. (I even have new non-DVD leather covers in a box, which came with the seat leather I bought from The Seat Shop a couple years ago.) Are all GMT800 headrests from 1999-2006 identical? Are there tilting and non-tilting non-DVD headrests? Is there something Denali-specific I should be looking for?

 

P.S. For the ACC stuff, we're installing factory-match carpet for the front two rows, but vinyl in the rear cargo area. I'll share pictures here when it's done!