AM/FM Thumbwheel Plymouth Radio Needed

Ok, I am no expert here, but take a look at the pics, the one on the right in all the pics is the plymouth one and dodge is on the right. The chrome pieces surrounding the plymouth is chromed plastic, same with the push buttons. On the dodge, it is one complete piece and is chromed metal. Push buttons on the dodge are black. On the bottom of the plymouth, you will see a stud/bolt on the lwr left corner, dodge doesnt have one. On the very back of the dodge, you will see a stud/bolt and not for the plymouth one. Last pic has the dodge chromed piece taken off and placed on top of the plymouth radio. Again, I am no expert, as maybe the black buttons indicate a slightly newer radio for dodge. A few subtle differences though and if you are contemplating the amount of money am/fm are being sold at, these reference pics may help