gauge cluster wiring???

[psycko069]

i am new to the site and just picked up a 1989 sil80. i will be doing the SR20DET swap in the near future. i have a question aobut the gauge cluster. i understand that the stock cluster in the 89 will not work with the swap. what is the differences in the 91-94 cluster as opposed to the one in my car now? and do i need the wiring for the new cluster or will it just pop into my dash, and hook up to the harness thats in the car now??? i tried a search and checked the faq's but did not find an answer. help is appreciated. thanks.............