RI Hams are warned that effective June 1, 2018, you may no longer use any handheld devices while driving your car. That includes your 2-meter microphone, or handheld radio.
Sadly, the marketplace has not caught up with the need for hands free radio operation. There are some very expensive commercial Bluetooth interfaces available for a few radios. Some newer ham gear includes Bluetooth interface options. Those of you with BaoFeng type connectors can find a Bluetooth interface via eBay. But often the Bluetooth interface does not deal with PTT — you aren’t supposed to be holding a pushbutton in your hand either.
A reminder that some radios do have VOX operation. The BaoFeng includes a headset with lapel mic and can be configured for VOX operation. Just watch those comments when drivers cut you off — don’t want that on air!