On my 94 Fleetwood, it was behind the carpet in the left (driver) rear wheel well area. I pulled down the carpet and it was just hanging there right in front of me, couldn't miss it. Obviously your car is technically a different generation (pre-LT1), and I also just realized you're dealing with a wagon so I don't know if they changed locations at some point or not. If no one else comes up with a definitive answer before tomorrow, I can take a picture of where mine is sometime tomorrow if it would help.
Last edited by schlicky13; 05-18-2016 at 09:49 PM.