I know it’s not exactly what you are after, but the 2010 onwards cars have USB and an iPod connection to play music from….

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The Bovee in my L322 settled down after being a complete pain at first - the one issue that I didn’t solve was how voice directions from Waze were always split between the Bovee Bluetooth and the car’s own connection, and both were cut short.

As a motorway car, I think even the late ones are starting to feel their age in terms of refinement - especially at 90+.

@Huggybearfezzy that didn't even cross my mind as it's not a handsfree device I didn't even expect it to have a handsfree profile. Disabled calls on the bovee and seems to be better, I'll know for sure tomorrow