If your car supports wireless CarPlay, press and hold the voice command button on your steering wheel to set up CarPlay. I did say "in theory" I'm not surprised it didn't work.

I have explained the entire process for playing music through USB in car. Here you can get complete info about it.
Hubs and USB […] Car audio systems tend to lag behind the consumer audio and consumer electronics in general, so it's much more likely to find a 3.5 mm auxiliary jack in your car radio than a USB port. ... without a whole lot of hassle. If you want to know about how to make USB port for DVD player, then you are at right article. The USB port might be labeled with a CarPlay icon or a smartphone icon. Find low everyday prices and buy online for delivery or in-store pick-up If your car supports CarPlay using the USB port, plug your iPhone into the USB port of your car or stereo. Nowadays the use of USB technology has reached its accentuated best in transferring data externally. If you've ever seen a USB-to-aux cable, you may find yourself wondering if might be able to use it to connect your phone or a USB thumb drive to your car radio. Shop for portable cd player with usb for car at Best Buy. Leave said cable plugged into the car, and plug the drive into the cable… doing so saves wear/tear on the car’s pricy USB port. Related: I suggest using a USB ‘extension’ cable in the car. You will notice a USB port in every computer. As mentioned the port is usually low amp so it won't run a portable player. If you have a smartphone or tablet it can be connected via its stereo headphone connector to that aux port and its output will be played through the car stereo. It is quite an easy task to connect the USB system to your car especially when your car comes with a built-in USB port and it is a very quick thing. I used a data disc, burned mp3's on the disc, placed it in my portable drive, plugged it into my usb port in my vehicle and it wouldn't play. Last words for How to Play Music through USB in Car? Portable Bluetooth CD Player Built-in Speaker Stereo, Personal Walkman MP3 Players 2000mAh Rechargeable Compact Car Disc CD Music Player USB Play Anti-Shock Protection 3.8 …
Whether you’re hooking up a USB flash drive, headset, printer, trying to sync your MP3 player, or even your smartphone, you expect your USB devices to just work when you plug them in. Extension cables are cheap and if need be quickly & easily replaced; having the car USB port replaced is an expensive nuisance at best.