digital compass and temp readout
 

Hello I have a kind of strange problem going on I have a 99 blazer ls 4 dr v6 and the digital compass/ temp readout just stopped working I have a spare that I plugged in still nothing I used a test light on it and I do have power on the constant 12v but nothing on the ignition wire is there a fuse or a relay or anything? Thanks in advance for looking.

anyone?