Agree with Sewin.
From Amazon, for £10.99, bought a “Zoachii bluetooth wireless auxiliary adapter” with 3.5 jack to plug into the aux socket of the radio and usb at the other end of the cable to power up the bluetooth. It works a treat. We use google maps on the phone for navigation and so get the verbal instructions through the car’s speakers. Music of choice comes by courtesy of Spotify. The best bit of course is that volume is easily controlled by your phone volume controls.
