hope this isn't duplicate/old news
recently picked up a Pontiac trunk accessory kit, won it on Ebay
I already had a kit, but it was a good enough deal that I though I would like a spare. When I received it and checked it out and compared it to the one I already had, there'* a few differences, so I did some research into what the variations are in Pontiac full accessory kits, not counting the "just air hose & fittings" type kits
So far as I can figure out, the Pontiac full trunk accessory kit first appeared in the 6000 STE in '83 (the first year of the 6000 STE). The kit actually says "6000 STE Accessory Kit" on the flap. I naver seen such a kit, but I do have a picture. This kit was available through to the '87 model year. The flap is held shut with 2 metal twist clasps, and there are 2 crossing velcro strips on the back to attach it to the trunk lining.
For '88, with the introduction of the Bonneville SSE, the kit was now available in 2 different models, so name on the flap was changed to "Pontiac Accessory Kit". I believe '89 was the last year of the STE version of the 6000, so for '90 onwards the kit appeared only in the Bonneville, but it was not renamed.
For '92, the kit was changed slightly, the size of the bag is different, the organization of the partitions that separate the compartments is different, the flap is held shut with velcro instead of the 2 metal twist clasps, and to hold it to the trunk lining are 3 parallel strips instead of 2 crossing strips