Radio flickers

[RTedder2]

So in my 09 Tahoe I have the factory nav unit. I know it's a crap unit for nav, but it's in there for now. Anyways, sometimes we notice that the screen flickers some. Not all the way off, just dims some. None of the other lights inside that go through the dimmer switch do.
Anyone have any ideas what may be up?

 

[Dallasdane]

Look at the fuse box under the hood for the radio, I had a flickering issue with radio and it was a bad connection on the fuse!

 

[RTedder2]

Ok. I'll check it out today. Thanks

 

[TraumaTruck1]

If that's not it, check your alternator. When mine started going out my radio flickered, but the headlights and dome lights also flickered.

 

[RTedder2]

I'll do that after the fuse then.