Ford F150 - 07 F150 radio serial number

Hi,

I just bought a 07 F150 that was salvage and the radio does not work. Someone said that the radio is "locked" and I need to unlock it. On the internet I found places that say they can email me the unlock code but they need my serial number and I was wondering which number is my serial number.

The sticker does not list any number starting with an M,L,or C and the sticker does not look like any I have seen as examples.

On my sticker under the Ford logo is, I think, the model number DZU7A, there is a 7L8T-18C869-BK number that I am not sure of and under the barcode it says G7MD017719.

Which number is the serial that I need to send to get my code?

I really do not want to take it to the Ford dealer in my area.

Thank You