The information head on the Ducato is great, apple play etc all work seamlessly, however, although the unit has plenty of volume it has little 'punch' especially when bouncing along our potholed roads. I was looking at a pair of round powerful speakers that could be linked together and fit neatly one in each door eg MINIRIG 3; realise most wont see this as a problem, however, wondering if anyone else is using anything to supplement or replace the Ducato speakers on the move? I have a number of Anker speakers which are great, just not a nice fit for the door cubby holes.