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Originally posted by Gilly
We're talking about 2 different things in regards to that key, I'm just curious if it works or not, it makes the radio display brighter, not dimmer, and isn't adjustable.
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Ok, you got me curious now. Here is a picture of my MCS. With the headlights on or off, I can push the ADJ button ...
And LGHT doesn't appear - only Fade, Balance, etc. Also, looking at the front of the MCS, I don't see any other controls having to do with Brightness.
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In addition to the display not getting dimmer when the lights are switched on, I assume if you lower the brightness of the instrument cluster with the adjusting knob nothing happens to the radio brightness?
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That's right. The illumination intensity of controls to the MCS do vary along with the insturment panel, but not the screen.
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PS Just realized you say the "ADJ"/"LGHT" option isn't present with the headlights on. This feature I believe may only be present with the headlights OFF, as it's intended for use during the day if sunlight is hitting the MCS faceplate, as it tends to get "washed out" in direct sunlight. Try it with the headlights off once.
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Ah, no, no difference.
BTW, this is the mess I started with. The white plug was spliced in to accomodate the Alpine head unit. The OEM plugs were discarded in the process.
I've checked and re-checked all my connections, including the gerate adapter and CAN Bus adapters. Everything appears OK. Also, I discovered the 12v between A6 and A8 appears when the parking lots are turned on (I mistakenly said Headlights before). I'm sure that controls the illumination of the MCS controls. I checked all the pins against ground, and none are specific to the headlights coming on.
Gilly, I appreciate your efforts, but I think I may have a bad MCS. Other '01 owners I've spoked with say that the MCS controls illuminate with the parking lights, and, as soon as the headlights are turned on, two things happen ... 1) the MCS screen dims, and 2) the ADJ screen now includes the LGHT/DARK menu option. Neither of those two things happen for me.