I've used various Victsing (sp?) ones over the years (in the £10-15 region) and they're generally fine. Inevitably you'll stray into 'Horlicks FM' or 'Shank Respec FM' somewhere on a journey but it soon passes 🙂
Also, they generally come with fast charging sockets which is a bonus.
On my RX I fitted a GROM device which is more expensive (about £100 if I recall correctly), but plugs easily into the back of the stereo and will play CD quality through your CD mode - when you press the CD button you just press it again so it shows as 'CD1' I think and then you're all set. They can come with AUX cables or Bluetooth connection for your music/calls, etc