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Foreteewinks
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My 987 Boxster has the above issue . The battery was disconnected for a couple of weeks and now there is no sound from the Radio , CD or multichanger . The Telephone , Navigation or Maps are now unavailable . I have tried the `press 148 ` reset which does not fix the issue , removed fuses 9 and 10 in row D and locked/ unlocked .Nothing ! If I press Main and Trip there are exclamation marks to the left of telephone, navigation etc and the fields are blank but ticks against PCM and Software with the relevant information . I think this is a software or similar issue as the single Cd player,, multichange and Radio all work albeit sound . The Telephone and Navigation and Maps do nothing just an error message . What is my next step ? I think this is not a hardware fault just some sort of software re-set but how do I do it or narrow the issues down without going to PSC and more than likely get told to change an Amp or something for a huge bill ? Appreciate any help from the learned . My first post and I hope I havn`t overstepped the mark asking for help on my first day! The Error message displays : System Error , Amplifier , navigation etc not available then it asks me to ` Confirm ` it ! BTW Thanks 4T