Thanks Neil. I'm keen to keep the existing controls etc so the car feels authentic.
There seem to be 2 issues so far for me.
1) The centre speaker. Why is this active when surround sound is off and you're playing stereo music? Seems too pronounced and forward to me - ruins the imaging.
2) The whole system is too bright, acoustically. Having detail in your sound is one thing, but the system feels uncomfortable for my ears. I have Naim and Tannoy in one of my home systems, so I 'get' forward sounding systems - the ML feels non linear with weird results on some tracks and simply too forward with most.
I'll live with the car for a bit longer and get to know it before jumping in.