Alistair
I have had a rummage in the footwell, looked up under the dash and through the boot and can not find any evidence of a further amp, so am concluding that the 50w per channel is all that I have got and that it is enough to provide sufficient noise to compete with the side pipes.
After I wrote my last post regarding the effectiveness (or not ) of the screen that I have on the current set up, I went down to the local shop in my wife's Smart and the sun was very low and very obviously shining on the screen and I had no problem seeing the screen. I therefore suspect that the issue I have is more related to the age of the screen technology which presumably is better on newer product.
The quote of nearly £1000 for installation of a £599.99 unit does make you stop and think a bit - presumably that included fitting of a reversing camera and parking sensors ?
No I am not necessarily looking for wireless ACP. I currently have a small lead in the passenger glove box area which is OK and charges the phone. I have the same set up in a DB11 which works for me, primarily because the battery life on my phone is a bit lacking, so I am happy to keep it plugged in and charging, so don't necessarily want wireless.
I will give Kraemer a prod in German tomorrow and see if that makes any difference, but they do appear to have the technology to deliver the functionality I want together with the design, so it is a bit frustrating that they can't even acknowledge the emails.