Yes, it is possible but you will have to order it Online. They do not stock the parts here at Honda coz its not part of the GCC spec for the Accord. The one I am talking about comes with built in GPS and is also quite cheap.

Go to: http://www.avalonelectronics.com/factory-fit-gps-navigation-c-2/honda-ac...

Click on the above link. The unit costs $1200.

You should be able to fit it urself as the part of the dash where this unit sits is easy to take apart.

You may also go to the body shop at the Honda service center at industrial area and ask them if they can help.

Best of Luck. If you get it, PM me so I can see itcoz I have a Honda Accord 2008 as well.

Cheers.