differences in ralley harnesses?

[priderocks]

I have a 70 chally with variable wipers. I also have another rallye harness that has a different connector for the wiper switch. Also, on that harness there appears no connector for a radio. Were there differences in rallye harnesses within the same year? Also, if you order a new harness from Year One, how do you know which wiper switch connector you will receive?

[Chryco Psycho]

there were different harnesses for different optioned cars
 I assume YO has different harnesses available , all that I have seen have radio plugs with 1 orange & 2 red to a T connector