I need the code for my stereo as I disconnected the battery trying to fix the bloody bluetooth as it has stopped playing my music over bluetooth. By doing this I locked the stereo

I have rung multiple ford garages and one of them to be fair said they would help for free if i could give them the V or M code on the stereo, I took the stereo out but do you think I have a V or M code ? of course not

Can anyone help with this please ?
Many thanks
Frank