Hi,probably been asked heaps of times before,can I modify a standard harness to work with a xr7 dash,with moving a few pins around on the 18 pin connector ,running a couple of different extra wires ,any known stumbling blocks I may encounter ,will have a new alternator harness(xr7),engine gauge harness and new oil &temp sensors.Not worried if I don’t have door ajar light etc.will also be running a rocketman tach off an msd so not needed in wiring.Any help or advice appreciated thanks