Review on 🚗 (2021 Enhanced) Criacr V5.0 Bluetooth FM Transmitter for Car with QC3.0 Charge & 7 RGB Color LED Backlit, Wireless FM Radio Car Adapter, Siri & Google Assitant Support, U Disk & SD Card, Hands-Free Calls Kit by Douglas Davis

The product is excellent and works as it should. The phone connects to the receiver via Bluetooth, and the receiver connects to the radio via FM. You should look for an "empty" frequency (no radio station). You can find them on Google near you. A little trick: set the phone volume to maximum and the radio volume between minimum and medium volume. This way you minimize background noise. The low price of this wireless system can only be appreciated. If you want more you have to spend +500 on a good system like Kentwood or Pionner.