If you have your own monitor mix you could mic the guitar amps and just not turn them up in the mains. You can also use ambient mics placed on stage or facing the audience to hear the band/crowd. depending on the model of IEM you are using you can buy a lavalier mic that clips onto your shirt and get the onstage sound from that.
Modulus quantum 5, Modulus vj, Lakland 55-02, Spector Euro4LX. Genz Benz shuttlemax 12.0, Genz Benz Uber 212, Uber 410, Shuttle 6.0 -12T combo, Shuttle 3.0-10t.