so the 4 wires conecting to the speedo are for cruise control???i really dont care about cruise control never used it or will never use it anyways.
all i know is that that check light that checks water,stop lights,washer fluid and etc still works and all my door lights,fuel light,e-brakestill work, i would try to install it and if betty dont work anymore. reinstall the old 85mph back on.