Can someone help?

I have spent hours searching threads and google for anyone who has a similar issue but haven't found anything.

My 04 non-navi 6mt has the factory head unit, but everything else is aftermarket.

This week my radio display went dark, but still works with cd and am\fm but not xm.

The temperature control display still works.

Does anyone have advice?

 

loose wire connection or something short out, this gonna be electrical issue that you will need wiring diagram to trace down.

 

Have you seen such a diagram?