Hummingbird Helix 10

I’ve got 2 Helix 10 Megan Down Hummingbird Graphs which are networked. The unit in the dash has no power. However the front unit and the livescope have power.
I took the front unit and plugged it into the console unit plug and there was no
power to the unit. I know it’s got to be a fuse or something. Can someone direct me where to begin looking to fix the issue. Hummingbird is sending me a tester to make sure its not the unit itself.

There should be a fuse on the positive wire somewhere. Depending on how it was wired, under the console or at the battery, would be my guess.