Radio and dash dimming issue

[ATB]

Odd behavior started with the radio / clock / gauges today.

When I first turned the car on, the radio / climate controls looked to be dimmed as if the lights were on. The lights were not on. After a few minutes of driving, the radio and climate displays went off completely. Then they came back on. Minutes pass. The clock and the radio dim...then eventually come back. Then the dash dims to night level...then back. Then the clock and radio dim again with the passenger airbag light flickering. Then back to the radio being off. At this point I had gotten to my destination.

5 hours later I go home and the radio acts up for the 1st few minutes and then everything stays normal. Have not started the car again since.

I have had a boost gauge installed recently. If the connection the installer made tapping into the illumination signal is not quite right, could that be causing this problem? Based on the boost gauge and after market audio system install, I have a feeling the dealer is going to give me a hard time to look at this under warranty if the gauge install is not at fault.

Anyone have thoughts and/or similar experiences?

[puzzled]

How long ago was the gauge installed? I would first try removing the illumination tap that was made for the boost gauge.

[CSTMIZR]

^^^+1

It could be your illumination connection, so try puzzled's suggestion.

Also, make sure that your battery terminals are nice and tight. A loose or corroded terminal could definately cause those symptoms (especially the flashing air-bag light).