NG Pajero radio cassette wiring

Question

I am replacing the mitsubishi radio and cassette with a phillips radio cassette and have two extra wires on the pajero harness. one is green with white stripe (Earth I suspect) and the other is black with a red stripe. On the Phillips radio I have two wires left. One for earth and the other for a power antenna, which the pajero does not have. When I check with a multi meter on the live wire to the green/white wire, it reads 11.96V and with the live wire to the Black/red it reads 0.07V My question is this : is the green/white wire the earth and the black/red the power antenna?