Yeah but that was in a much older car, and it was with Diamond Audio HEX600 speakers as well, with the tweeter set at -3db on the crossover.
I have had around 4 cars since then!!
I am in a Merc E320 Brabus estate and a BMW X1 at the moment and the X1 head unit seems to have some funky stuff going on.
I am booked in on the 14th to have it coded.