Thanks for this information. What did you search for or what are the names of these connector blocks?

Thank you @incipient! Is this connector a direct fit into the new unit or will any modifications be necessary? I am very concerned about the CAN-H and CAN-L pins on M49

Here is the front of the unit

I have just found some additional information on my head unit here. What is the match to the JRNWD numbers ? I know you mentioned to just look at the connectors but I would like to be certain before I try anything on the new unit

Hi @incipient thank you for providing the pinouts. There are a few pages of pinouts for various models of audio system I assume like:
JRNWD1429GB
JRNWD1430GB
JRNWD1431GB

And so on. How do I match these reference numbers to one of the numbers I previously provided like 7 513 750 220 or 259154ET1A ?

Qashqai J11 2016 but my friend also has a 2014 year. Can you provide for both please?

Hi @incipient, in terms of the pinout for the old unit, I checked and it is:

7 513 750 220 or 259154ET1A

Please can you kindly provide the pinout for this unit so I can compare what I need to change in the wiring? Thank you

Thank you for sharing @incipient. Could you please provide the pinout for the older Connect unit?

Hi @incipient thank you for sharing these details. Can I just confirm, did you previously have the older Connect unit with double buttons on the left and right as well as the SD card? Do you have the pinout for the older headunit with SD card? So basically are you saying that there will be no damage...

Thank you @gloucester. Where are the other similar topics please? I did search before submitting my query but maybe I was searching for the wrong thing