If your GX470 has no Navigation Screen here are instructions on how to install the OEM AC Board - 

GX470 AC Controls Issue needs OEM Mother Board


Youtube Video for GX470 Installation with premium unit.


All other GX470 and LandCruiser is plug and play

If unit does not turn on - possible a connector is 7pin? 16pin? forgot which one

but there are 2 connectors that look identical they might be plugged to the wrong one - switch the 2 connections

and unit should turn on

This Vehicle Land Cruiser - Also Needs to Use OEM Navi Board - Connect the pink cable to the OEM AC control Button Connector

(Land Cruiser 120 LC5 Year 2008) 

Back of OEM Unit

Model Of Unit