Miata Turbo Forum - Boost cars, acquire cats.

So i am working on a full NB interior swap into my 92 NA, i've gotten everything wired up and swapped over and the last thing im still working on is how to get the Speedometer to work. I have the speed sensor from the miata that the cluster came out of and ive ran the two wires from it up into behind the radio but they aren't currently hooked up to anything. i know there are two wires on the cluster (a Yellow and an Orange wire) but i don't know if you just connect the speed sensor directly to the cluster or if ill need something in the middle to interpret the signal coming from the speed sensor. I've looked around and found a few people who seem to have done NB cluster swaps but nobody i've asked about it has gotten back to me.

Any insight would be really appreciated.