I recently bought a 2011 Focus MK3, but the radio doesn’t have Bluetooth. It only has a USB port and an Aux input, but no way to plug in an Aux cable.
I want to add Bluetooth to the original radio without replacing it with an aftermarket one.
how do i go about it??
You definitely try Anker Soundsync Bluetooth Receiver that allows you stream music with Bluetooth 5.0, connect two devices, make hands-free calls, and has a 12-hour battery life, and can be used in cars, home stereo systems, headphones, and speakers.
This one seems nice although i don’t really have a Aux jack to plug it in to.
Oooops!!
how about you consider Syncwire Bluetooth 5.3 FM Transmitter is a car adapter with 48W power (PD 36W & 12W), a light switch, HiFi bass sound, fast charging, wireless radio music, LED display, hands-free calling, and support for USB drives??
I’m sure you’ll really like it
thx so much 
i bet this is what i was looking for all along 
You might want to consider a Bluetooth adapter that clips onto your car’s sun visor or dashboard. These typically connect via the Aux input or directly to the power outlet and provide Bluetooth connectivity without any special modifications on your preinstalled radio
You could use a Bluetooth adapter that plugs into the USB port. Though some adapters can connect to your radio via USB and provide Bluetooth functionality.
POV. Just make sure it’s compatible with your radio’s USB interface.
I could recommend going for a Bluetooth FM transmitter