I have an 89 audi 90 quattro the car has the full 93 audi 90 quattro cs swap. i took the guage cluster out and noticed that the plug for the fuel guage is missing was there a difference in the 89s guage cluster and the 93s guage cluster and if so will the 93sguage cluster fit in the 89s place?????????????? i really neede some input.......