basically had to reset the immobiliser on sat by taking the battery out which reset the head unit also and it was already in the car when i bought it and i do not have the code to unlock it where can i get it from or what can i do?

 

Speak to a sony authorised dealer as they should be able to get the code for you, or look in yellow pages for car audio - lots of unlocking services there.

Before this goes into realms of how to unlock, I'm locking the thread as wife's tales of how to unlock a) don't work and b) encourage people to think theft is worthwhile.

Cheers,
nick.