DH has a big birthday coming up. We have a nice stereo, bought as an expensive wedding gift 15 years ago. DH really likes it, but it is a CD and analogue radio, so not much use. I want to get him a Spotify subscription and a way to play it in our open plan living area. Am I best to get a Bluetooth speaker? Or a converter thing to make the current stereo play via Bluetooth? (it has an aux 'port', so this should work). Any recommendations? Thanks!