[CA11] MFD upgrade from E127 to gS165

I am upgrading from a e127 MFD (2013) to a gS165 MFD with Lighthouse II. Can I just replace the old GPS with the new RS150 GNSS and then plug in the existing wiring from the old unit to the new unit?

I have an AIS350/AIS650 as well as the original ST60 instruments (2007).

The instructions call for a 4.7 version or later. Are they referring to the navionics charts?

Thanks for any input or advice...