I permanently installed in my van I use the weekend, and that is not equipped with all the options to control the position origin wheel, and therefore difficult to change it without going through the box manufacturer. ..
good, here now I'm like in my c4 2015, I have everything, iphone connected to the FM transmitter that scales in the post
impeccable, this is really nice on long journey
no special adjustment !! it's plug in play.
on the car I tried the 12v of the trunk with a usb full of MP3 and here I have MY PERSONAL RADIO !! lol
doc is very well done, in short no particular worries ... except that I hang not design ... so it will not be entitled to his picture ... :-)