Just noticed this today - the truck has a new squeak of some sort. Here is a short video - you can hear the squeak after I come to a stop and then take off again:
http://flic.kr/p/dniQUa
My Pathfinder is a 2006 LE, 75k mi, and it was a dry, warm, sunny day. It happened with the engine warm and after the truck was hot it eventually went away.
It squeaks a bit at idle, picks up when you gas the engine, and after the engine was hot, you would only hear it when letting of the throttle and the rpm were falling.
Any idea if its a stretched belt, tensioner pulley, or is there another common pulley that might be going?
Thanks,