philips car 400 radio code required

[rmjp]

Hi id appricate some help, appologies if i have posted this in the wrong section. ive looked every where on the net on how to get a code & came across your site.

me mum has a philips car 400 radio, not the most high tec radio in the world, but it does what she needs it for & its less likely to be stolen, the battery went flat & now its asking for the code, which she hasnt got, is it possible for anyone to provide it ? my local dealer is asking £20 to do it but money is tight for me & my mum.

i have the serial number philips 400 car radio GM0400v1628621

many thanks for your time