Need help finding/installing maps on Binatone Carrera X350

[BAPS]

Hi i received the Binatone Carrera X350 sat nav as a christmas present, it comes with 25 pre installed maps of Europe, but i was wanting to know where i can download or buy a map for California, USA, i've been onto Binatone's website and i've emailed them asking them the same question, but there has been no reply yet, any help or advice would be very much appreciated.
Thank You.
Baps

[Lester_Burnham]

I've a feeling this should probably be moved to one of the forums not dedicated to specific vendors PNDs.

[mikealder]

We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
Have you considered making a donation towards website running costs?.
Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!