Hey guys I'm not sure if there is an open thread about this already; I tried looking but failed. Anyway I have a 2003 Holden Astra and after removing the battery the radio has locked itself and I really don't feel that charging $35 by Holden is appropriate :/ Can anyone help?
The VIN number is W0L0TGF6935164385; it's a Blaupunkt 520.

Cheers,

Tim