The radio display screen in my 06 Chrysler Pacifica doesn't illuminate, radio wo

What is your question?

My 06 Pacifica I just purchased, and I noticed the display screen on the radio isn't illuminating. Wondering if there is a fuse for the display light, the radio, works great, I just can't see the stations. So then I noticed in the very back where the jack goes, I noticed a Sirius XM music receiver, did this come factory like that? Because the screen to the radio is quite small, but I didn't know if the Sirius receiver was why the display light to the radio isn't working or fuse, or what could it be??

What makes this problem better or worse?

The darker at night it is, but regardless it doesn't show.

How long has your 2006 Chrysler Pacifica had this problem?

A few weeks