You can also buy the bluetooth converter below and use a portable siriusxm receiver. It will sound better than using the horrible FM units.Then it would kill my phones data usage, I only have a 2GB per month plan and usually don't even use that much.
Does the Model 3 have an AUX input anywhere? Someone mentioned using a USB stick, is there a way for a Sirius received to plug into the car and play over its speakers?
Plus, I shouldn't have to use the phone to listen to the radio in the car.
Stereo Bluetooth Transmitter for SiriusXM Radios