Lost power to gauges and radio, ignition still works

[Jroefamily]

I have a 2010 Grew Grande S 178 B/R with an Evinrude E-Tec 90 outboard on it. I was working on diagnosing an issue with my fuel gauge always reading max full, when I lost all gauge functions and radio. My ignition will still start the motor fine, but I don’t get the startup beeper when the key is clicked over before ignition. I also have other button functions like bilge etc that work fine. I do not see any blown fuses under the dash at all and cannot find any fusible links so far. Can anyone help me diagnose the possible issue?

 

[alldodge]

There is either a fuse blown somewhere, and ya just haven't found it yet, or a wire came loose

 

[Jroefamily]

Thanks. I’m aware of that. I was hoping someone might be able to point me in the right direction.

 

[alldodge]

Take a volt meter and start tracing backwards. Gauges don't work so start there and trace
Test light might be easier

 

[Silvertip]

Gauges typically have +12 volts and ground daisy chained from one gauge to the next. Therefore if the +12v or ground connection is lost on the first gauge in the string the others drop out as well. As was advised -- follow the juice!