[Kiske]

I'd like to zombie this thread for some help as I'm stumpt.

I'm trying to get my Tanabe oled gauges to dim.

Here is the wiring off the gauges.

Red- Constant Power (Fused) +12v
White- Ignition Switch (Accessory) +12v
Black- Ground (-)
Oragne- Illumination +12v

I have the gauges all wired up except for the orange illumination wire and the gauges are running FULL Brightness. I've tried tapping into the radio dimmer (purple wire/pin10 on the 10-pin connector) wire and when I connect the gauges they dim ever so slightly, however there is no change if I toggle the headlights or interior dimming.

Do I have the wrong wire?

Thanks