I use one of these bluetooth controllers:
![[Linked Image]](https://tm-img.com/images/2019/12/15/Bluetooth-Controller.jpg)
Cost a couple of quid from ebay, and can operate it without having to stray too far from the steering wheel. For me, it links between my phone (where I store my music) and a Bluetooth Speaker I keep behind the seat, but will link with any system that uses bluetooth. Means I can also leave the phone in my pocket reducing the chance of any fines!