CD code entry

Have you ejected the cf carrier and really insert it?

Sorry about the spelling android likes to type its own words
reinsert it?

This is a really high-failure radio. If it needed a code the radio part wouldn't work. When discs are left in with the battery disconnected or run dead, the cd changer is expecting to see discs come in the next time you turn it on. It doesn't know there are discs in it already. You can try ejecting all of them then starting from scratch but if that works you got lucky. These are probably the biggest source of anger between buyers and sellers on eBay because the buyer has a non-working changer and the seller is convinced he shipped a good-working unit. The carriage gets out-of-time from the vibration of shipping unless you go through the procedure to install a huge metal locking bracket on top that has fingers that drop down into the slots in the cover. I have some replacement mechanisms that actually have a large sticker on top that says "scrap if dropped". I have a half dozen of these radios on my shelf that were not dropped, just bounced in shipping. I gave up trying to get any one of them to work. Ford has also refused to sell radio service manuals and parts since 1998. That prevents people like me from repairing your radio at a much lower cost than the factory repair centers. GM pulled that nonsense in 1994.