Help which 12V wire for stereo ('79)

[Mikesbaron]

I need help. I'm having a hell of a time finding which 12 volt wire to power my stereo on my 79 Mustang.

I was using a blue with yellow striped wire the PO had wired into. But I grounded the wire on the radio chassis mounting area and now can't get 12 volts out of it.

I checked my fuse panel on the left side under dash for radio fuse and it is not blown. Is there another fuse that I might be missing? If not what item wire might I use?what's another 12 volt I can wire into? Should it be a constant 12 volt?

 

[General karthief]

Key on power. Find an empty spade in the fuse box that is hot only when the key is on. Use an inline fuse that is the same rating as the radio you are installing, zip tie it all out of sight and rock on!