Identifying a wire

I'd start by looking up the radio model, maybe there is a wiring guide online. I have also seen ready made harness adapters in the stores.

There is a color code. I remember yellow being the light circuit, blue being power antenna, pink being remote on. Best google it because my memory could be flawed after all these years of having no hands on experience.

Keep in mind that in new vehicles everything talks to the control module. If you want the window down, the switch doesn't put the window down it tells the module that you want the window down. If the module thinks you should have the window down, it will do it. The radio is no exception. You may have speed sensing sound, alarm tones and more. Get an adaptor.

Tom

An old radio wouldn't have that capability...

There are likely leads for: power (memory) switched power dial lights speakers (x4) antenna in antenna motor ground (x5)

True, but the vehicle may be expecting more than that. If the radio is installed independently of the existing harness then its possible to connect as you say, but if the op is replacing a stock radio there could be problems.

Tom