Hey guys just installed an AEM digital boost gauge and just wanted to verify that they don't have backlighting that turns on when you turn on your headlights? It's just the led number readout and sweeping led's?

 

Correct, no back lighting. They're either on or off.

 

Isn't there supposed to be a way to make the backlight dim with headlights? The white wire is supposed to control that I think, I never did hook it up though so I'm not sure what fuse it would go to for the best function.

 

Ground (Black)
Switched +12V (Red)
RS232 (Blue)
0-5V Output (White)

 

THe aem boost gauge alwady have auto dimming function.
I purchased it instead of other brands purely because of it.