when it rains it pours

That is the wire that I told you was cooked in a earlier post. The only differences you will find from one year or model to another is the size of the wire and which pin it goes to of the main inst' panel connector and if there is a branch to the fuse box or not. I dont know for sure if 71 has that branch or not but I wouldn't butcher a good rallye harness for it anyway. Lots of stores sell wire.