I've been using my 2004 Volvo XC70 D5 for six months as my daily driver. Let me show you all the improvements I have made to it, and see how I have got on with the car

Bluetooth kit I used https://www.amazon.co.uk/dp/B07VYTXR3... (though it currently seems out of stock, sadly)
https://www.ebay.co.uk/itm/254335722747