A simple Bluetooth module designed for wiring into car audio systems ... However, it requires adding in a Arduino or similar that can speak I2C, a DPDT relay, and some supporting components.

You can even change the whole stereo head unit to a new one ... it’s one of the cheapest ways to add a Bluetooth functionality to your car and it has a lot of features. Pros The SoundBot ...

Also, the CD changer input for the stereo ... add-on hardware, he built his own circuit board around an ATmega168 microcontroller and Bluegiga WT32 Bluetooth module. To connect to the car ...

Add Bluetooth to Your Car: UGREEN Bluetooth receiver is designed to turn home or audio systems, or speakers into hands-free, Bluetooth-enabled devices. If you want to ...

Most new car models offer Bluetooth technology, which frees your hands by wirelessly connecting your phone to the car's audio system. But if your vehicle doesn't have it, you can still take ...