UGREEN Aux to Bluetooth 6.0 Car Adapter with LDAC, 3.5mm Aux Adapter Built-in Microphone, Car Bluetooth Audio Receiver for Hands-Free Calls Compatible with Speaker & Home Audio

This works only with aux entry port, which unfortunately LS430 of any trim does not have. I am using aux/Bluetooth adapter on our 2010 ES350 now and we find it really good. Most crucial part is making sure you download music in high quality or stream Spotify in lossless quality. Your speakers might be fine even with a shitty cassette adapter (I used one on my Ls430 and found it ok) it could be your software set up that's letting you down the most https://a.co/d/08HKhAZ2