The other day my radio stopped working, 97 F150, stock stereo system, heck figured it was a fuse, no power to unit, checked fuse under dash all was good, did a continuity test on fuse all is good, Are there any other fuses located other than under the dash that would control the power to the radio? Everything else works fan, cig lighter, etc Also all the lights on the stereo panel come on except no power to unit Help?

 

I know that a lot of electronics have internal fuses that have a long life, but do blow due to age. This might be the case for you....crack that thing open and see if there is a fuse inside the casing.

 

I have since pulled the stereo out and tried another one I had lying around and I got the same results no power to the unit, not sure if there is a relay or something that would control the power

 

There should be 2 power wires Constant (AKA Memory) and Switched.
Do both the constant power and the switched power have 12v to the stereo?

 

Pss-Mag
I will have to check that out tomorrow night after work, I am sure there must be another fuse under the hood possibly or a relay that has blown
Thanks