There are multiple original radio options in the Ford Transit Custom MK1, which option is the original fitted system?

The Ford Transit Custom started production in late 2012 and was available with a 2.2 diesel engine that performed to Euro 5 emissions standards.

In September 2016, to coincide with the introduction of the Euro 6 emissions standards the Transit Custom saw a new 2.0 'Panther' diesel engine and some major revisions under the skin, despite looking outwardly very similar. This includes how the radio works and the connections on the back of it. Both models can have a basic radio without a display above which kept the same wiring between the two generations, versions with a screen need different parts to fit an aftermarket radio depending on when they were made.

Most Euro 5 models have a monochrome display above the radio and most Euro 6 have a colour display but there is some cross over between the two. 

There is a couple ways to tell if your van is Euro 5 or Euro 6 compliant if you do not know the build date. Firstly  if your engine is a 2.2 litre diesel then it is an earlier Euro 5 model, if it's a 2.0 litre diesel then it is Euro 6.

The next easiest way to check is the high level rear brake light, filament bulbs for Euro 5 and LEDs for Euro 6.

A major facelift in 2018 saw further revisions to the radio with the introduction of Ford SYNC 3 system to the Transit Custom.