[Dannyboy1949]

Someone here will answer your questions, but...the first thing you need to work on is getting an owner's manual and, if you plan on doing your own service work, get a factory service manual as well. These publications are invaluable.

Here's a site that says you can download manuals free...I see the 2008 Navi manual on the list.

http://goldwingdocs.com/Manuals.asp?type=GL1800

Welcome to the forum!