The Headunit High (HU-H), also called NBT came in vehicles with option 609. This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and came in vehicles with option code 609. This uses map North America EVO. The ENTRY Media/Navigation (HU-B) is the low line business version of the navigation system and came in vehicles with option 6UM. This uses map North America ROUTE. The ENTRY NAV EVO (HU-B2) replaced Entry Media/Navigation as the low-line business version and came in vehicles with option code 609 or 6NP . This uses map North America WAY.
