Not all G-14's came with MW-50. And like what was previously mentioned, some G-14 were rebulit G-6's. Whereas all G-10 were brand new airframes. Radios were FuG 16 ZY (id'ed with the so-called morane mast under the left wing) FuG 25's (for friendly a/c, flak batteries etc.). These were found in Late G-6Y's/G-14's/G-10's/K-4's/K-14's. No doubt as you said field conversions took place of radios/MW-50 such. Ost front aircraft tended to delete the FuG 16 ZY radios though.
So I can quote you in agreement that it is not really a case of "a G-6 is this and a G-14 is that" in particular where those two designations are involved, yes?