My agu 1.8gti turbo was working fine. Took the stereo out this afternoon to tidy up some wiring, refitted the stereo all good. Tonight I go to nip to the shops and the car is dead. All ignition lights up as normal. Horn wipers lights etc all work. Turn the key to start and all I get is a faint hum. Almost
as if the immobiliser is still on. Please help me I need my car for work. I have no vagcom so can't get any codes