Hmm. Inside turn signal indicators function differently with headlights on

[RustyPile]

Jocko, Those symptoms all indicate a ground loss, or at least a loss to some of the items.. It's not unusual for a trace on the PC board to break.. In some cases, the break is almost invisible.. The ground trace "travels" all over the PC board.. Remove the cluster (once again!!!) and check the ground trace very, very closely..

Also make certain the pinout on the harness plug is correct for the gauge cluster. They are different, you know...