Unfortunately, I had a number of issues with my Car and the factory set-up. BMW e39 has a large number of options and none of these would work with the Xtrons head unit without having to fully rewire the car. Nonetheless, Xtrons have been ace offering me advice and even sending out a whole new unit to get around my issues-which I couldn't in the end at this stage. They even offered a full refund when we came to an impasse. The unit was a huge step change compared to an earlier unit I've got in one of my other cars. When connected it was super fast and offered a lot of features! Wireless carplay was well integrated and handy! Will defo use Xtrons again and their support was the best I've had, ever.