Audi A4 1996 1.8 T Immo OFF

Hey,

My good friend have this old Audi A4 1996 1.8T 4X4 Manual.
He has problem with immobilizer, I promised to try help him, because his son just got his drivers license & kid would be more than happy to drive.
Could some of you gentleman walk me trough this?

I have UPA, X-Prog, FVDI...

Thanks in advance!