I've got vectra 2003reg and I have got problem with the radio display. It is working but can not display the outside air temperature. I have replaced the old air temperature sensor with new one but no changes. The other thing is, when I turn on the key and displays radio station and time but as soon as I switch on the head lights all whatever it is displaying disappeare. When I turn off the head lights goes back to normal.
Does anyone has an idea what the problem it could be?