[moltuae]

I have an XCarLink. This one I think:

https://www.xcarlink.co.uk/product.p...1&cat=4&page=1

Sound quality is reasonably good although the output seems a little low (I have to turn the RNS-D volume up higher than I do for other sources to get the same level, even with the phone's volume up full). I find it's more than loud enough when turned up though.

The USB socket is for convenience/charging only (not for connecting devices or pen drives) and you don't need to connect the mic if you don't need to use it to make hands-free calls, so you could just hide it away behind the dash if all you need it for is to stream music via Bluetooth.

If I remember correctly, you just unplug one or two of the RNS-D connectors and plug the XCarLink in-between (using the male/female connectors on the supplied wiring harness). To select it on the RNS-D you just choose CD but it is selected alternately so you don't loose the ability to play CDs. So, if the first time you select CD playback your CDs play, cycle through the sources again and the next time you select CD playback you should hear your XCarLink device. Once selected the RNS-D should remember the source so you don't have to keep reselecting it each time.