88 for 89 TQW seat swap

[Robert D Greene <RDG51@sprynet.com>]

I am trying to swap an 89 200 sport seat (leather bolsters, fabric
inset, no heater) for my 88TQW seat. The mechanical fit is fine, but the
electric's won't read the signal from the 88. How to swap electrics so
that the wiring will coordinate? Does the  the "Box" under the seat
contain the info required, and will this make it work witht he 88
switches? I'd rather keep the seats intact, but pulling the upholstery
off the 89 and transferring to the 88 would be a last resort. Also, the
89 does not have a heating element, can this be retrofitted? As usual,
TIA for any of your responses. Rob Greene