Find the PIN for a Siemens CD70 NAVI car radio for an Opel Astra H 1.3

[toura]

Hello friends,

I replaced the radio in my Opel 1.3 CDTI with a used Siemens VDO CD70 Navi. I need to find the PIN code for this new radio. Could you please help me?

Model: CD 70
Serial: GM007062046054
Part Number: 13 271 253

Br,