I have read through the forums and it seems a few people have upgraded there audio head units. I am looking for just a head unit upgrade. It needs to work well for sat nav on its own and through iPhone carplay, with digital radio. I use waze a fair bit. 1. Has anyone upgraded recently? 2. Can anyone recommend a good head unit ( that has good functions and is easiest to install / compatible). 3. What extra parts do I need, wiring harness, different surround, fascia kit etc. 4. Could I install it myself? I have read the head unit can be a pain to install? 5. I have read you have to remove the lower dash panel, then the surround, then this gives access to the head unit. Is this correct ? 6. Can anyone recommend a good installer in the UK, either in the West Midlands or North West? Many Thanks in Advance. Rob.