The Dispatch | Expert | Scudo Hub

I decided to replace the original Citroen branded factory-fitted stereo in my Dispatch (2006).

I went for the Pioneer MVH-150Ui - but it uses the universal ISO connector so this story should help anyone trying to fit an after market stereo.

In short - swapping these over is a breeze - but one major issue cropped up.

After installation - the new stereo would not remember any settings, radio stations or anything else.

Every time I switched off the ignition - all the settings were lost.

Now, I knew that all the connections had fitted fine - and I knew that the factory-fitted stereo retained all its settings fine.

Car stereos take two power supplies: one is a switched 12v supply which is activated when you turn the ignition on; the other is a constant 12v supply which helps the stereo keep all its setting in memory.

So it seemed like the constant 12v supply was missing.

In actual fact - Citroen, on this model and some other Citroen cars, decided to break from the ISO standard and swap two of the connectors.

Here's the ISO 10487 standard connector as it should be:

https://dispatchexpertscudo.org.uk/foru … nector.png

So Citroen have (in their wisdom!) swapped connectors 4 and 7 on the ISO A connector.

Once I swapped over the red (switched 12v) and yellow (constant 12v) cables going into my stereo head unit - the problem was solved

Now .. to replace these factory speakers ....

Hope that saves someone some time!

Tiree

PS - I'm not sure if this fix applies to the Peugeot Expert and Fiat Scudo.