I have the Chorus headunit at the mo with a 6 cd changer. I quite like it, but i hate not having MP3. So my choices are, get a sony mp3 cd changer and an adaptor. Will this put the song title up on the dash/cd player? Try and fit it where the oem changer is. I'm sure its doable. or Take it all out and just fit a sony mp3 unit. I really don't fancy hunting down wires and making it turn off when i pull out the keys. But at the same time i don't want to have it turning off when i turn off the engine. Any thoughts?