Clarion made a great head unit last year that has variable illumination. If you can still find it somewhere, it is a nice receiver.
http://www.clarion.com/us/en/products/2008/audio/source_units/cd/DXZ785USB/us-en-product-pf_1172385078991.html
I thought it looked a bit cheaply made when I saw pictures of it, but after seeing one in RL and playing with it, it is a nicely made unit. I was going to buy it, but the money just wasn't there.