Yea, mine look exactly like the two you have. I had to use the crappy looking one (the one that looks like I could have built it myself, and that's not saying much). I called both Ames and Classic Ind., and they both said the new repro tachs could only be used with the cheap harness.

There is an inconsistency with this though. If you look on the Classic website, they say that the nicer harness can be used on original OR REPRO tachs. But, I can tell you, it doesn't work on the repros for sure. When I called their tech support, he clearly said the nicer harness will NOT work on repros - the inner electronics are different.