Need AM-FM Radio - 72 Dart

There is a Realistic brand FM converter listed in parts for sale. That is the simplest way to tune fm stations in your car. If you later decide you want a similar amp and speakers,
Look for a Audiovox Sound Exploder. It has a single on/off button. None of this is modern day bump in the trunk but simple additions that can come and go from car to car with no real harm done. Good luck