Got a Fabia 51 plate estate and last few days the interior lights does not go off when the ignition is turned off and the boot does not open via central locking all the time, any ideas please help?????

Do you hold the boot unlock button?

My interior light stays on if I haven't shut a door properly... does your car give the 'door open' dash light still when locked as though a door sensor has failed?

Yes tried it, it does work now and again but not everytime. It does not give door open on dash when locked. Problem I got is when I put a stereo in the ignition fuse blew on the radio not sure if that has burned the ignition wire somewhere as i can't get another radio to work in the car and the interior light not comming on when key taken out of ignition