Has anyone found a replacement head unit yet that will work with the stock CD changer?

Or is there a new head unit you can buy with its own in dash CD changer?

I want a new head unit with seperate input and outputs so i can hook up my satellite receiver and an amp and do away with the cassete player (do they even make cassetes anymore????)

I really like the indash changer feature though and dont want to give it up.

Also the standard unit really sounds pretty good, is that because its a good quality head unit or speakers or both? Anyone know who its made by?

Thanks

Pete