Well I found a nice set of grey GTA seats to replace the worn seats in my 85. The "new" seats have the adjustable side bolsters. I'd like to wire them up so they work. Has anyone done this? If you can supply a quick wiring guide, it would be greatly appreciated.

Thanks

If they're GTA seats they should already be "wired" up.There's an air pump under the pass seat that supplies air to the bladders under the side/back lumbar for both seats.Whomever you got the seats from should have take the harness/air line out with the seats.Other wise its gonna be rather technical making the harness from stratch.

Is there a round switch on the exit side of each seat?

Yup, the switches are there, one on each seat. The harness connectors are intact for each seat, there are 3. One large with orange and black wires I believe and then two little connectors, one in each seat. I did locate a harness and I think that's all I need. I just have to give the harness power and ground and then connect it to the seats, correct?

Yes, if you have the OE harness, it only needs power.Seats should work w/out the key also.Harness should also have the air hose.