The Nissan Path

When I am driving and hit overdrive the Rpms stay lower, I start to hear a slight chirping noise. Anyone else encounter this? I checked the belt and there appears to be an ever so slight wobble to the tensioner but the belt looks good, no cracks or other wear that I can see and the noise doesn’t happen in park or neutral and seems to only be audible once the rpms drop from OD, 2012 path with 49k