i have a 94 cx swapped with a 00 ls running a obd1 p75. being that my car didn't come with a tach and not wanting an ungodly 5 incher or anything, i wanted to just swap the cluster. sounded easy enough. just plug in another cluster, right? wrong. i plugged in 4 known good clusters and the tach didn't work with any of them. my ? is: is there a fuse or anything? or is there something so simple that i'm to smart to figure out? (yes plugs are pushed all the way into the cluster.) if anyone has an idea drop im open to sugestions. tia