about 3 months ago one morning on my way to work my 04 started to make this noise coming from around the back of my aftermarket radio and i cant figure what it may be .sounds like a cd changer like sound but i know this radio is a single cd . if you cant listen to the sound ill record another video and post it ...
here is the link

 

Video is private......

 

sorry about that i just fixed now .....

 

I only hear that initial pop, not sure if that's what you're talking about or if that was just moving your phone around for the video.

 

That pop could be a blend door motor.

 

i was afraid someone was going to tell me thats what it was . ill recored another video . it does sound like something opening and closing constantly the noise its killing me ..... .....

 

here is a link to a better video ......