Problem solved....below is my post copied from the “Denali Cluster in SLT” thread... Well, as it sometimes seems to go, it’s the “easy” things that can bite us. After hours and hours of troubleshooting and some serious above and beyond “service after the sale” from MVI, the culprit was found out yesterday. It turns out that the new pins I had added in the cluster harness did not have a good connection to the new wires to which they were crimped. (Had I taken 5 minutes to check continuity BEFORE I installed these....hindsight...) Fortunately I had a second set of terminated leads already made up and after checking continuity on each of them (one of the new ones was bad too; thankfully I had one to spare) I proceeded to replace the original set and just like that we went from this... To this... Thanks to those who offered their assistance but just as those posts were made I was making those elusive final (re)connections. So yes, with the right amount of patience, prayer (literally), and professional help this ambitious build can be done. Thanks again to Anthony at MVI for the harness kit and the rock star level troubleshooting help! (FYI: MVI offers pins with terminated leads for a very nominal charge. IF there is a next time for me I’ll be adding those to my order.) Also thanks to Chris at WAMS for the seamless integration of the cluster, HMI, and radio and the necessary front end communication to ensure I was sourcing the correct parts. If I can be of assistance to others, especially those with Tahoe PPV’s (this is #3 for me), please let me know.