Oh, then you need to run another wire for the audio. Whereas with the ancient 30-pin iPod port, you got an audio line out AND power in. And the cool thing about that one is that it was a true line-out: The volume control didn't affect it, so you didn't have to dick around with the volume on two devices (the player and the car radio).
I bought the Lightning-to-30-pin adapter from Apple, and it duplicates all of that. You get the audio line out and power in. A cheap Y cable with USB for power and 1/8" plug for audio solves everything. As far as I know, it's the only solution that Apple has ever sold for a problem it deliberately created. And I doubt anyone, statistically, is even aware of it.
Neither of the other two vehicles in our household have Bluetooth at all, but they both have aux inputs. Bluetooth is a shitty workaround to intentional, anti-consumer stupidity. Just as almost every car (even cheap-O rental cars) integrated auxiliary audio inputs, Apple removed the audio output from their best-selling music player (the iPhone). And when gutless consumers allowed them to get away with it, everybody else followed suit and now we've regressed decades.
Twenty years ago I built an iPod dock into my car, into which I could plop my iPod (and later iPhone) and get power into the phone and audio directly into the stereo system. The phone charged, and delivered good audio quality. As a bonus, it did so without the need to dick around with two volume controls, since the 30-pin connector had a proper (fixed) line-level audio output that didn't vary with volume adjustments on the phone.
This is a level of convenience and performance that very few people enjoy now, and that is pathetic. Manufacturers have intentionally degraded so many of our consumer-electronics experiences with no payoff for us, and very questionable payoff for them.
Qi/MagSafe helps with this