Amazon has Luckymore Wireless Carplay Adapter for Apple iPhone iOS 10+ (Various) for $19.99 - $10 when you 'clip' the coupon on the product page = $9.99. Shipping is free with Prime or orders $35+.

Thanks to Deal Hunter phoinix for finding this deal.

Available Colors:

• Coal
• Gunmetal Gray
• Space Green

Product Description:

• Easy to convert your wired Carplay to wireless with luckymore Carplay wireless dongle! You can continue to use the full Carplay function and keep the original car operation, such as navigation, music playing, Siri assistant, phone calls
• This Wireless Carplay adapter is compatible with more than 800+ car models, support for iPhone 6 and later iPhone models. Not for Android Phones ! -- ONLY designed for cars equipped with wired Apple Carplay, Not for Tesla!
• Plug and play design for this Wireless Carplay, suitable for all motorists. Just plug and play, no need for any extra drive, apps, or troublesome system upgrades. After the first setup, our adapter will automatically activate the CarPlay wireless connection every time the car starts
• This Wireless CarPlay adapter can be easily hidden or mounted out of the way. Makes moving around efficient without connecting and disconnecting wires, reducing wear on your charging cable. You won't worry about forgetting your phone in the car after a drive
• This sleek and stylish magic link carplay adapter is the perfect companion for your vehicle! Its compact size and lightweight design make it easy to carry with you without taking up much space in your car. Come with a USB to USB-C adapter, which allows it to access both USB and USB-C type car ports