There a lot of Android Auto Displays on the marcet, starting from 50€ (good ones start arround 70) ... they connect to the phone via Bluetooth and at the same time the the phone connecst to the car bluetoooth, im my case the BT Adapter connected to my original Chorus cd changer port.
This is a very easy way to get more connectivity in the car, everything stays original and you have all the benefits of android Auto/apple car play ... tunein radio, spotify, speedcam warnings ... works like a charm.
And in traffic jams there are ways to watch YouTube videos also ... but thats a different Story.