I have noticed the volume decrease at times as I drive. I have turned off the volume speed control, so I don't think that is it. The problem is noticeable but not so drastic that I am ready to take it to the dealer.

Anyone else experience this?

 

i've noticed it on one CD - seems to go away when i turn on compression?

 

What is compression and how do I turn it on?

 

I have noticed it but with the vibration problem I have I could care less about the radio right now

 

On your radio you have 6 numbered buttons. One them is marked COMP. When you are listening to a cd and push that button you will hear a noticeable sound difference. It takes the bass and treble sounds and blends them together for a more balanced sound. Your owners manual will give you a better explanation.