ok 2 questions.
#1 is the trunk/hatch and gas door opener (the cables and handles) the same on a hard top and vert? my 89 vert broke the trunk opener cable.
#2 the headrest speaker control is it the same on all years?

 

1. No the cables are different lengs for the trunk/hatch. Gas is the same.
2. I beleive that s5 controls are the same. never owned and 88 so i'm not 100% sure.

 

ok so with the trunk/ hatch cables what cable is longer? if the vert has the shorter cable you should beable to swap in the longer cable with no issues... or so im thinking they are both incased in a sleve so im thinking that other than having a bit more cable to route diffrently that it would be the same end result.

 

Yes.

 

after a lot of searching on parts pdfs i did find that the seat vol control switch has the same part # in 88 89 90 91
FO55-66-9LOA

 

When it comes to cables there are two critical dimensions.
One is overall length and as you've correctly noted, an overall "longer" cable could probably be made to work.
Nearly every Japanese car uses cable release devices and they are remarkably similar in detail. You could probably find a suitable cable on a Honda or Toyota, both of which are abundant in junkyards.

The second critical dimension is the free length of the cable- i.e., how much extends beyond the outer sleeve. This is basically the working length of the mechanism and needs to be right, regardless of overall length.
The stock cable end (the ball/barrel/whathaveyou on the end) is soldered on but replacement cable ends are available that screw on (Ace has several sizes in stock) and if you have enough free length to work with, the stock end can be cut off and the replacement installed to give whatever length you need.

It's probable that your stock cable can be "fixed" but if not, a replacement should be easy to find.

 

ok well i found out that the trunk cable didnt break what has happened is the end of the outer housing is made to lock into a spot just behind the pulling arm in the cab. well mine had poped out so after a bit of tring i got it cliped back into the spot its ment to be... then after removing the trunk latch assmb. and cleaning and greasing it good and lubing the cable i put it all back together and worked it with the trunk open all felt great so i closed the lid and pulled the arm and pop the dam thing poped out of its lock area again. for some reason it keeps doing this. anybody had this happen b 4?

 

This happened to me on my 90 vert many times. To fix this I closed the slot where the cable clips to a bit so it can have a tighter fit. The cable hasn't popped out since.

 

so the slot that leads to the hole that the cable clips into you just squeased the slot so the calbe cant pop out to the side?

 

Yes. I noticed that the slot was bent a little so I straightened it out. After that I squeezed the slot a bit & pressed the cable back in. This is what I did & was enough to keep the cable from popping out.