LM741 OP amp noob question
Connect V2 two AFin and ground.  Spice is not going to like C3 hanging out there with no path to ground. Add a 1Meg resistor between AFout and ground.  The amplifier will have a gain of about 100.  Set the VAMPL=0.01 for starters.  This will get you about 1V out a low frequencies.  Try setting Frequency to 1kHz to start.  Run a transient simulation for about 5ms to see about 5 cycles of AC.   The AC input is not used for transient analysis so you can leave it empty.  The OFFSET doesn't matter since C2 will block any DC at the input.