my gauge and tail lights keep blowing fuses i unplugged all wires going to back but fuse still blows. " what could it be" i also here a low howl when lights are on.

 

Sounds like you have a positive wire getting shorted somewhere between the fuse and the lights or gauges. The fuse is doing it's job to keep your rig from burning up. What ever you do DON'T put a bigger fuse in.

 

thanks. i had to take the whole dash out to replace one wire!