Interesting subject I'm looking at doing something re the sounds on mine in the very near future once all the outside mods are complete looking perhaps for something a little more upmarket from the Alpine offering(nothing tong with this as it offers a great plug play solution) but I think there's something a little better out there I'm running a standard Nav Pro CCC set up now and know that can be improved upon but where to go
money wise up to say £800.
Have another thread going on tech section re this very subject but I'm out of my comfort zone re sounds TBH which makkan's kindly replied to re his thoughts