Wireless android auto question

Hey guys, looking for someone with some android auto knowledge. We just picked up our 22 Tuscon and trying to figure out this wireless AA business lol! So here's my issue... We have both of our phones connected but it will not allow us to switch to my wife's phone as being the one to be connected for calls and AA. It keeps saying "this feature unavailable while using AA. When I try to open it on my phone it just closes immediately. When I try to shut off my Bluetooth it just turns back on immediately. We cannot for the life of us figure out how to shut off my AA or switch between the phones. Does anyone know an easy way to do this? I'm sure we could delete the phones and start over with hers set up first but would like to be able to switch between the two when needed if possible. Hope this all makes sense to someone! Thanks!