How about try asking after you have a list of troubleshooting questions after you get the head unit.
I'll give you some basic ones, press big round button to enter the menu and turn to move from one menu option to another. A lot of the audio options will give you different features when you use the side tickers instead of the volume knob.
After you get it all in, hook the mic into the front Auxiliary, take off your driver head rest and place the mic on there, hold down the SRC button until the head unit turns off, hold the EQ button and it will initiate auto EQ, make sure there's no noise around and let it work its magic. Then re-set gains afterwards.
There's a little dip switch on the bottom of the head unit if you want to go active networks.