The title explains it all. My note 9 I just plugged in and put sound out to the radio while still using the phones built in mic to talk. This dumb thing won't do that. I have used the Sammy dongle and a Belkin Rockstar charge and play dongle. Both turn off the built in mic and leave me without the ability to talk hands free. Is there a setting I can do to fix this? Please don't suggest I buy a bluetooth device as the electrical system in the semi puts out all sorts of garbage which make bluetooth work like crap. Also 3rd party mics all suck or are stupidly expensive to do something a 4 generation old phone just does. Honestly plug and play is my only practical choice. Any ideas?