Hello, I'm ChrisI will do my best to answer your question fast and accurate using the info you have provided. Thanks for visiting Just Answer.
Just so you know up front, not always do we have the ability to post good news and in this case thats whats going to happen.
First off you need to remove the radio from the dash. Let me know if you need help. Now unplug the radio and sit it in the seat overnight so it can discharge and reset. In the morning install the radio and try it out. This is the only way to accomplish a reset and the only way to try and get it to work without disassembling it and repairing it which I cant help with since this is not done at dealerships. its sent off and refurbished. I am told the most common fault is the cartridge location sensor or circuit board, by the company that rebuilds them.
If replacement is needed. It will take a dealership about 3 days to get a refurbished unit. You can also change to an aftermarket unit. Don't be fooled by the ebay radios. 90% of them are broke just like yours.
You can remove the battery cable but I have found the discharge time is longer, because there are alot of modules in the vehicle that store power in resistors and when the battery is disconnected, this still allows the other modules to transfer very small amounts of power back and forth.
I am not saying dont do it that way, I am just saying it may not accomplish the same goal in the same amount of time.
JA will keep the money if you do not accept, they keep it in your account here so you can use it at a later date. At any time your not pleased this is a 100% satisfaction website, so you can always ask for a full refund.
Below is a ford image showing how to get the radio out, it takes about 4 minutes.