While decelerating and coming to a stop (just as the truck starts get under 5mph) the factory 6 disc cd changer (the one under the passenger seat) makes a low pitch "errrr" sound?

It sounds like its loading or something. Does it every time I'm coming to a halt. I never use the changer, but have cd's in there.

Anyone else every take notice of this?

I guess my rig is running good, I have nothing else to complain about.

 

Never any problems here. First time hearing about this.