Radio fuse needs replacement and can't find the location of the fuse.

there is a fuse at the back of the radio , remove the radio and replace fuse

Change the fuse, if it still doesn't work then the circuit can be tested before spending the money on a new radio

I had the same problem. jumped the battery and then the radio didn't work, just said "ford fusion" on the display. you need to locate the fuse box down by the brake pedal to the left, very difficult to get at. once you find it remove the plastic cover and then remove the radio fuse (look in your owners manual for the fuse number and location). using a needle nose pliers works the best. once you remove the radio fuse look at it, the small metal wire inside should be broken. replace it with an identical fuse. my fuse box had spare fuse slots with same color and number on them so I just used one of those.

It can be issue with radio fuse or wiring issue of radio.
First test the radio fuse.If its blown out,then replace it.If the fuse i checked ok,then its radio wiring issue.Test the voltage.
Check out few help links provided below,related to car radio problems:---Click the link below:---
Radio Controlling Fuse Location? http://howtobyme.blogspot.in/2012/05/2003-lincoln-aviator-radio-controlling.html

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No clock, radio, gps, climate control After Battery Cross Jumped? http://whatisbyme.blogspot.in/2012/05/2006-lexus-ls430-no-clock-radio-gps.html----------
XM satellite radio interface kit Connection? http://technoanswers.blogspot.in/2012/04/toyota-avalon-toyota-xm-satelite-radio.html
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Radio Power Antenna wiring diagram? http://technoanswers.blogspot.in/2012/02/radio-power-antenna-wiring-diagram-for.html

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Where is Radio Fuse located on 2007 Dodge charger?

http://schematicsdiagram.blogspot.com/2011/12/where-is-radio-fuse-located-on-2007.html

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2006 Ford Expedition radio not powering ON? http://technoanswers.blogspot.com/2012/01/2006-ford-expedition-radio-not-powering.html

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How to reset Radio code after car battery is died? http://howtobyme.blogspot.com/2011/12/how-to-reset-radio-code-after-car.html

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These details will help.
Thanks.

The fuse you need to replace for your radio to work again is Fuse 15a, located on the left side of the steering wheel. There you will see a storage door, with a 15 a fuse marked cig. Replace it, and your clock and radio will be functional again.

if you have the owners manual it gives you fuse locations..

if the radio is not working then it's the Radio module located on the rear (tail) on the left. you need to replace that to have your radio back to normal. but before that try to remover the fuse and fix it back as sometimes it gets stuck internally..the fuse located in the glove box. open the led and read which fuse for the radio

Fuse located in fuse box below steering wheel
Fuse 4 15amp.This controls radio/cig lighter

The radio fuse is on the passenger side kick panel in the fuse cluster. Remove the panel by pulling on the access door. The fuse for the radio located on the top row closest to the front of the vehicle.

The A/C car charger and your radio run off of the same fuse, which is located when opening the passenger door, and opening the fuse compartment. There will be a fuse map locating the desired fuse, replace. Have your factory security code ready, you will need it to unlock your sterio.