Thanks bad_boy640, lavondys and seamonkey!

Very helpful comments. I will try your suggestions and will let you know if it worked.

Btw, for others having problems finding the correct custpack, I think I managed to find the it now with the help on this page: Top Sony - CDA W580

I used the CDA number (extract this with XS++) to find the correct custpack.

Cheers,
Vincent