This new wiring harness simplifies air conditioning installation by easily connecting your existing relays, fan switch, and pressure switch to our new All-In-One Swap Harness. 

If your car is wired with our original KPro conversion harness, just use the supplied pigtails to pin this harness to your ECU E connector and you'll be good to go. 

**Please note this is plug and play for Miata's that have two relay's on the driverside (left side) of the engine bay. If your Miata has the one big relay you will need to wire up your AC system custom using a wiring diagram for your specific model year.**