isn't there any fancy solution, perhaps someone opened a cd-changer to see which chip is inside there. this is a kind of work around....
A long time ago I saw a snapshot of a schematic of a pioneer radio with IP-bus connection. I found this schematic somewhere in the yahoo groups (
http://groups.yahoo.com/group/ipbus ). Pioneer uses an IP-bus driver with type number CA0008AN.
Kind regards,
Dave