Help Connecting Car Audio?

I bought a new Cd head unit, I took out the old one and the harness it was on. I plugged in the new unit to the Ignition, Ground, and Battery wires on old harness but nothing happens. I have tried soldering, and crimping, Nothing seems to work. Could the old harness be broke I know its not the CD unit. Any ideas of what I might be doing wrong?
Fuse is what it was thanks!
 
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