How to apply a FM voice signal to VCO Vtune pin?

I used a VCO with 2MHZ/V sensitivity for FM voice modulation,the ch BW is 25kHz,how apply the voice signal to VCO Vtune pin?

for this ch BW I should apply 5mVrms voice signal ,but my voice signal is 500mVrms,how I apply it ,is there any low noise method?

I assume, a voltage divider could be a regarded as low noise method.