Sounds like a gieger counter under drivers side dash. Tick click sound. Sometimes more clicks sometimes less. Does not do more or less no matter what you do. Steering, speed, bumpy road, nice road, moving steering column, turning. Turning off all electronics does nothing. Nothing changes the constant noise except stopping. Or going under 5 mph. Stops sometimes for no apparent reason. Sometimes for days. Sometimes for minutes. Making me crazy. Any ideas? Thanks 2015 Yukon Denali