Rt3 Upgrade 651 Na 663 Build 890 Can42 New [portable] Jun 2026

: Firmware starting with 5.x is for older VAN-bus vehicles. Do not attempt to install 6.63 on a 5.x system, as it will brick the unit.

The most critical part of this string is can42 . The RT3 unit relies on the CAN Bus to know when the ignition is on, to control the volume via the steering wheel, and to display trip computer data. rt3 upgrade 651 na 663 build 890 can42 new

The upgrade from version to 6.63 Build 890 for the Magneti Marelli RT3 navigation system (found in Peugeot and Citroën vehicles) is the final official software release for the CAN bus (4.2) architecture. Core Enhancements & Performance : Firmware starting with 5

While official Peugeot/Citroën dealers may no longer stock these older discs, they are often available in community forums such as the Peugeot Forums or the French Car Forum . The RT3 unit relies on the CAN Bus