Go to bernardiparts.com and search under the Inisght. It's under interior, driver and passenger side and well as the center console if I recall. The diagram for the switches, etc. is under electrical.
There are also some Honda shop service manuals for the 2010 Insight for sale on Ebay now. I picked one up pretty cheap last week.
2010 Insight Ex w/navi Tango Red
2006 Civic hybrid w/navi Alabaster Silver