MC4 connector problem

So I understood that the MC4 connector can only accept a wire size between (12AWG - 10AWG) but what about if I want to connect a bigger wire to my solar panel ? Do I have to manually remove the MC4 of the back of the panel (but this will void the warranty of the panels) ? So what should I do to connect my solar panels using a bigger wire?
*BTW, the wire I am talking about is the wire between the solar panel array and the charge controller.
*BTW, the wire I am talking about is the wire between the solar panel array and the charge controller.
Tagged:
Comments
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah FLA 24V nominal used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.