I'm a rapidly loosing the thread on this one, since if you want a Bentley sound system then why don't you buy a Bentley and not a £15,000 car. Why put stuff in it that costs so much when the car isn't worth much ?. LOL.
If I put stuff in my Altea for all to see it would be ripped out with broken glass down the road and put on a car boot sale, as it did with my first car, an Uno where the parcel shelf, the back window and the speakers were taken in the night, hence the love of the headend and the no sight upgrade to the speakers since under statement is the watch word in London if you don't want to file a police report and brush up broken glass, but one notes that most people don't, they just leave it.
Seat's are the cars for boy racers to twigg with, but paying someone to twigg with it doesn't seem to gell in my book. Just an observation, there is no fun in that. The fun for car audio is choosing the upgrade and doing it yourself, then listening too it and thinking, that sounds good and I did it myself.