I called Dakota Digital and MH wiring that supplies harnesses to Year One and not getting any definitive answers. If you can shed light, thank you I have non rallye dash in my 70 Cuda. Already have the VHX cluster from DD. I am replacing all 50 yr old wiring harnesses. My big question is what to buy for dash harness. From what I understand, wires that would have fed actual instruments now run through the green distribution block supplied by DD. Since their non rallye dash adds a tach, oil pressure like rallye dash, would it be better to get rallye harness. Plus converting from ammeter to volt meter. Water, oil, and speedo uses their supplied harnesses. To further complicate matters, I am installing Holley sniper, Hyperspark distributor and coil, plus Holley fuel tank with in tank pump. I also got the Holley to DD interface module. So with all that, what am really using from a stock dash harness. Turn signals can be run separately if desired per their manual. I plan on using the dimmer feature of cluster and not mess with their actual dimmer switch. Are the headlights part of the forward light harness? What about wipers? What else am I missing that is in dash harness vs a separate harness. and will it be easier to just run a few extra wires for cheaper than $550-$650 dash harness. I know that is a lot but for those that have done the DD and Holley mods, I appreciate your input.