How to use an iPad or iPhone in your car, instead of CarPlay
If your car doesn’t support CarPlay, you can’t find the CarPlay receiver you want, or what you have doesn’t support it very well, you can create a reasonable facsimile on your iPhone or iPad. Here’s how.
Back in the day, you could use iTrip to broadcast on FM from your iPod to your car radio. Now there’s CarPlay, which is just about infinitely better — but only if you have it.