Alpine PMD-B200P

Hi Folks,
Please apologize if i ma posting in a wrong thread.
I own from a couple of years an Alpine PMD-B200P Navigator with as Autoradio an Alpine IVA-D106R all togheter. Actually on the BNavigatore there is Igo8 version 8.3.1.101892 Jul 28 2009.
I would like toknow if i can update the Igo8 software to a newest version.
I have tried with the version 8.3.2.064875 and it seems it works on the PMD
since i do not attach it to the autoradio.
Infact when i attach it to the autoradio the volume disappear.
Please anybody can tell me how to fix it or if there is already a newest version that works without any problem also when i attach the PMD to the autoradio?
Hope in an help.
Any help will be really appreciated.
Enzo

Can anybody help me? I have the same GPS and i would like to install the newest iGo maps. How can i do it. If there are already post about this issue, please help me, post the links. Thank you