Aintscared35

I have a 1994 audi 90cs that I haven't driven in a few years and just started it and let it idle every few months. I decided its time to sell and started cleaning it up and took it down the road when I noticed the speedometer didn't work. I also noticed the temp gauge did not move either. The gas gauge always says empty, but always was like that since I bought the car in 2013. The clock, tac, and odometer all seem to work though. I removed the cluster and checked connections and make sure a rodent didn't get to my wiring and everything looks fine. I'm not sure where to go from here, so any input/advice would be greatly appreciated! Thanks in advance