Just changed my phone from an ageing iphone 4 to the 6s, all is well and linked via bluetooth to the car no problem. However, it insists on downloading my entire phonebook every time I get in the car, whereas somehow with the old phone I had managed to find a setting (possibly on the phone, possibly on the car) to only download my favourites which was much quicker.
This isn't the 'speed dial' contacts bit, it was a way of getting the car to only download 20 or so favourites instead of all 200 contacts in the phone, so the car 'phonebook' screen only had those 20.
Any ideas what wonderful trick I did two years ago that I cannot now remember?