Dean,
I did feed the light bulb off of the switch so that when the lights are turned on, my A/F gauge lights up.
I have already made a second wire assembly and the existing 16 or 18 gauge wire that burned up is now a 14 ga wire. Will this fix it?
I also added a 5a fuse on the blue wire going to the A/F gauge. Is this enough or wrong? My existing head light switch wires are now 14ga and they look fine.

Thanks for the reply.