I'm not entirely sure where to put this so I'm putting it here

cdwmotorsports said
Where cause it's not on Mymopar. I don't have time to order one and wait for it to show up then to order what I need.

So improvise. The 1970 manual is there. I'm sure the horn didn't change in two years. Lots of other things will be the same too so it'll be well worth the download.