-
A basic bluetooth radio https://www.amazon.co.uk/dp/B07CJKRXFC/ref=pe_27063361_487055811_TE_3p_dp_1
A thing for the phone to mount it somewhere easy to see
https://www.amazon.co.uk/gp/product/B07FNZWXXV/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1A convertor kit for the car with a replacement fascia and connectors to wire in the steering wheel controls.
I could have gone for a cheaper no-brand radio and I'm sure it would be fine, but the convertor kit had instructions for the main brands so seemed less faff to go that way. And it's nice to keep the steering controls. The thing that originally made cds skip a track now works for Spotify!
What did you get in the end?