actually if you've seen some of the headrests in some older GM suvs, they really really suck, or even in a van, those headrests are nice and small. What would work too would be to remove the entire system from a junk car (head rest, railes, and bracket) and from there pull apart the rear seat backs slowly from the back and place them. I wanna measure and see if thats possible, if it is, I'll post a how to LOL but tahts JUST a ways away, I first need to find the right headrests (colour and size).