I fixed a few things today.
No matter how well we look after our cars, some things just deteriorate. Such as sagging foam in the driver's seat bottom cushion.
I went to the trouble to get a piece of foam rubber to put between the foam and the spring setup under the seat. This required removing the seat, the rails from the seat, the wire "net/grid", and most of the hog rings.
It was well worth it. The seat is nicely firm now, and you sit noticeably higher. This improves vision, and reduces that "gangsta" effect of slouching low in the seat. But the biggest improvement is that it's remarkably easier to get out of the car since you're starting from a higher seating position.
Then on to a broken vent. On the passenger side of the dashboard, the vane with the adjusting knob in the rectangular vent had gotten broken, and so the vanes couldn't be adjusted.
I'd also found one of the rear door speakers had gone bad, so It was off to the wrecker to get a couple of speakers and a vent assembly. Fortunately the white '91 Spirit had a blue interior for a matching vent, and the green '94 Spirit had the back speakers.
But there's something else not resolved. Lately there's been a clearly audible metallic "plink" noise, apparently coming from under the center of the dash. It happens when starting up a hill, or when switching the heater controls from "defrost" to "vent". I'm fairly sure it is a blend door in the heater. Trouble is, to get at it I have to remove at least the console, silencer panel, and glove compartment. Would anyone have any thoughts on what this noise might be?