Fastening up a new drivers side air hose, I spied a couple of purple & red wires leading to a female connector. I see no corresponding male connector. Any ideas what this is? I need a magnifying glass to read the wiring diagram. Could it be for the seat belt buzzer that I removed 20 years ago? I also found a couple of small bulbs hanging there. How many illumination bulbs plug into the tach and speedo? The instrument lights seem to work but dimly.