Name these wires

[Dr. Feelgood]

1970 Challenger R/T

Had an aftermarket radio from 1987 in there and I'm in the process of taking it out and installing the reproduction radio from Year One.

I came across these two heavier gauge wires, both are green but one is a bit darker. They go into these ..





Next are these two... One is red and the other is orange. Both just hanging there bare. They go into a plug and out into 4 wires ...

[burdar]

The red and orange wires should be "Power" to your radio.  Both my 73 Challenger and 68 Dart have the radio powered with the red and orange wires.  I think red is power to radio and orange is power to the radio light.

[Chryco Psycho]

Don't have the wiring diagrams handy but could be speaker fader wires being both green

[cv70chall]

That's correct.