Hi - bought myself an additional flip key from the bay for my A3. It arrived and is a used 2-button audi part with the same p/n as my working key. I had a blank cut and fitted and all works well. I know I need a dealer to sort the immobiliser, but I can't get the car to recognise the new remote dibber. New batteries OK. With my 2 keys, I've managed to 'delete all keys' and then add back in the original using the programming function. But no matter what I do, I can't get the car to 'hear' the new dibber. Are there different frequencies available or is the only answer that the electronics in the dibber are shot? The seller also has a used 2-button seat remote. Is it worth trying the seat remote or is this likely to be a no-go. Bit gutted about this so any advice would be appreciated. Cheers.