1993 Nissan Sentra car radio

Now when you say the radio was cut out what do you mean. Do you mean the wiring and all was cut out? Meaning that there is now connector to connect to. Get back to me and we will go from there.

I mean they cut off the factory plug and the only thing left was just the wires I could not find a diagram that actually showed the color of the wires which were in the car originally so I wired it up as close to the diagram that I downloaded for the 1993 nissan sentra

Ok I would get a plug from a wrecking or salvage yard and put one back on but here is how it is wired.
Red wire constant hot
blue wire hot with key on
Red and blue do not use
blue and yellow left front speaker +
blue and white left front speaker -
brown and white right front speaker +
brown right front speaker -
red left rear speaker +
green left rear speaker -
blue right rear speaker +
pink right rear speaker -
These are the wires that you need be concerned with the others that may be left tape off and ignore. Don't forget to hook you ground to a good chassi ground and thats it. Hope this helps.