Greetings Legacy fans! I've just bought a 2nd-hand 08 Legacy and the audio system doesn't work properly. I can't get past 'Security' for any length of time. I have disconnected the system -at the battery- and that worked for about 20 minutes and the system then reverted to the impenetrable. The manual doesn't seem to have anything about it. Any ideas? I had a Subaru in America and it was terrific. I hope to get this niggle sorted soon. THANKS