Mach 1 Gauge Cluster on 03 Mustang V6
So I just installed the mach 1 gauge on 2003 v6. problem is I swapped out the cluster board in order for it to work and not even deal with the PAT system. besides that I works great except for the fact that I don't even know fast or slow I'm driving. Any Ideas how I can get the recalibrated to work properly on my v6 and where?