And another one... Android auto won't engage?

Hi. 

I've plugged my Samsung A52 into the console USB connection. First time, it said, do you want to use android Auto, great, I clicked yes. The voice came up and the map came up on the panel. 

I did something as I was in a service station, probably pressed back on the phone again. 

That was the ever I heard from Android Auto. I tried plugging the phone  back in. But it ignored it. It came up as charging so lead was fine. 

I've been into Connection nanaget, it say my phone is primary phone. Woopidee. It gives me useless options. 

I went into my phone, shut down android auto and restarted, but the car refuses to engage in Android Auto. 

The in car NAV is (ahem) cow excrement, no traffic adjustments. Today a 29 mile motorway drive came up as 35 mins. Android Maps was 2 hrs. It took 2 hrs. I want Android Auto not Audi WasteOfSpace

My wife's 1 year older fiesta has a 10x better satnav with traffic updates.