1. The luggage rack was specific to the Fiero. Strips from others won't match up in length or mounting attachments. That's because the spacing has to clear the reinforcement ribs underneath the lid. The only source is from another Fiero. Once you locate them, I can help you source the well nuts needed to attach it to the deck lid.
2. I have an OEM radio with volume and tune knobs, equalizer and cassette player. $20 and shipping.
4. Turn signal cam and springs are available at Advance. They're shown in the side bar in the link below. Dorman products. Most parts stores carry the Dorman line. The horn ring is used on many GM vehicles. It's not listed for the Fiero but the S10 uses it. The white one is for tilt columns, the green for non-tilt.
http://shop.advanceautoparts.com/p/dorman-help-turn-signal-cam-83232/17190463-P# I know it says it won't fit a Fiero, but it does. I have two in use at the present time.
5. The fiberglass headliner board is common to all Fieros. The only variation is with or without sunroof and the later model with the 3rd brake light. The fabric to cover the fiberglass board can be found at Hancock Fabrics. Almost a perfect match for the stock color, and it's really really cheap. Cracked boards can be taped on the upper side with Duct Tape or Gorilla Tape to keep sections together, then using a bristle brush, lightly brush all the loose material off the surface where the fabric glues to. It takes less than 2 yards of fabric to completely do a headliner. There's no special mounting hardware except on the sunroof models, there's a welting that presses into a body groove to hold the edges of the fabric. That welting is available at The Fiero Store. They also have an ABS headliner that can be installed as is or with fabric. Removing the side trim, especially along the A-pillar is touchy. The tabs built onto the back can be easily broken off, if not careful.
