Here is the 96 version of a list that I did for someone on another forum yesterday. The colors at the beginning of each line are those used by AutoMeter. If using a different tachometer brand, adjust accordingly:
Originally Posted by rwenzing
What I would do:
- White - (Instrument night illumination) - Splice to red/black wire at HVAC controls or instrument cluster connector
- Red - (hot in start/run) - Splice to red/yellow wire at any 1 of the 3 cluster connectors (supplied through fuse 11 of dash fuse box)
- Green - (tach signal) - Splice to tan/yellow (runs from pin 48 of the PCM through the firewall near the P-brake pedal and then to one of the cluster connectors)
- Black - ground
NOTE: red/yellow means red body with yellow stripe, NOT yellow with red stripe.