I had a Mk1 Focus - the owner's guide, service log and audio guide are separate booklets contained in a neat zip up case. The audio system code is entered on a card inside the front cover of the audio guide - the card has perforated edges so i would imagine in some cases this gets separated and tucked into a wallet and subsequently lost.
I only needed the code once, when the battery was changed at 13 years old. Car was eventually scrapped due to corrosion so I kept the booklets as a memento - you never know when things might come in handy!
Edited by TinaS on 18/06/2022 at 09:26
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