To connect
First step=click on source button and find bt audio
Second button=hold disp button for 3 seconds
Third step=find del device and click play/pause button it will show you del all then click on play/pause button and it will show you deleted
Fourth step=find add device and click on play/pause button and turn on your bluetooth and connect toyota
Fifth step= click on source button and find bt audio and play your music,etc.
And now you are connected if you want to adjust volume you can adjust from both mobile and car
Reply if it is helpful.