I took the Liberty back for the skidplate and front tow hook install and to have them check out the CD player. I have noticed skipping on several of my CDs. The wrench came back and said that my CDs were dirtyand/or scratched and the player is sensitive. Funny, all of these worked perfectly in the Infiniti that I traded in on the Liberty. Other than cleaning the CDs and trying again any ideas? This has the navigation unit with Infinity sound system, so I am loathe to just up and replace with aftermarket. Thanks!