I’m so confused and frustrated right now, I could drive a Kia.. I have an Autometer speedo that worked great for a few hundred miles, then went spazzo, jumping erratically, then just pegged. I logged like 200 miles getting home from 20 miles away. I checked all wiring and found no issue..hell, it’s only three wires; +12v , ground, and signal. Wires are independent and not routed near other wires, so no inducted voltage. So, I figured the sender failed and bought a new one. Same issue. So then I sent the speedo to Ampmeter for test and check. They say it’s good. I tried recalibrating. One sender does absolutely nothing- zero mph. The other pegs before I get 50 feet. Now the fun part. My neighbor has the exact same sender not yet installed. I used his meter to ring out the sender for all possible combinations and wrote down all the values. I rang out both my senders and nothing matches between any of the three, but my two are way off from his. Then I notice his sender plug is wired differently? WTF? Both of mine are wired the same, and his is opposite. Check out the photo attached and notice the position of the wire colors. Does anybody have one of these they can look at and verify which wiring is correct? Any ideas? I’m getting ready to disassemble the cluster assembly AGAIN and resend the speedo back for yet another test. Anyone have a nice reliable Kia they wanna sell?