If you want to keep the changer stick with another sony headunit, as a sony changer wouldnt be compatible with different brand aftermarket H/U, however with MP3 CD function, it is making CD changers old hat. if you do want a sony then the Sony CDX-DAB6650 would be a good bet, as its got a hidden CD slot, Face off, and boasts DAB, only costs about 150quid if your not bothered about DAB check out the sony Sony MEX-1GP similar spec, only without the DAB and the radio face is a 1gigabite storage device so you can listen to the music on that,