When I called my dealer today to chase up my car that's been off the road for nearly 2 weeks, they told me my replacement AMI still hadn't arrived. When I asked if the car could be re-set to having no AMI and I would pick it up, I was told that they would still prefer to keep hold of it. I asked why it was so difficult and was told that they have to get a SVM code (or something like that) from the factory. I was further told that with other MMI cars they deal with Audi UK, but with the A/S5 its done by an email dialogue with Germany. What exactly is this 'coding' malarkey, and specifically what's so different about the A/S5? Why is it that a simple thing like a faulty music interface can keep my car off the road for so long?