I need help for unblock radio Philips GAMMA IV on VW Passat

[mathewvyskoc]

I helped frend replace the car battery, and I forgot ask him if he have got the radio code.
We could not find it.

Can you help me to find the code please?

Radio info:

Made ni Germany
9022 215 88711
Philips
04/98


Model: Gamma IV 3B0 035 186A
the radio serial number is: VWZ6Z3W1482903
There are some other numbers: 9022 215 88711 15
003 9804 1482903

I appreciate your response.
Many thanks.