I have a 2021 Keystone Cougar 23MLS with OTG. The RV came with 1-170 Watt Zamp solar panel, 40AMP PVM charge controller and 2000 Watt Inverter. I have added two additional Zamp 170 Watt solar panels to the roof for a total of 510 Watts which is supposed to be max for the wiring from the roof to the charge controller. My questions is can I add an additional panel to the portable solar panel outlet? I am upgrading to a 60 AMP MPPT Charge controller and the Victron MultiPlus-II 2x 120V Inverter.