Has anyone retro fitted a reversing camera to a 2020 citigo. I have found the part on car systems EU but it states does not fit certain head units. So I am assuming my head unit is compatible but would appreciate any information such as pin outs ect?

I've looked into this before, on other European forums but at the time I hadn't found anyone who's fitted one to a Citigo.  If I remember correctly it was deduced it certainly wouldn't work on some models of Citigo because the radio doesn't come with a fitted video encoder inside - but which radio models it was unclear to me.  But looking at the wiring diagram it's definitely in there.   The wiring is fairly simple - 5 wires, one to ground and one to power and one to the reverse light switch - and then 2 into the radio - exactly as stated on carsystems.   Never got far enough to look into the coding 

 

Have a look here

 

VW UP! MK2 2018+ Reversing Camera Retrofit - Advanced In-Car Technologies (advanced-incar.co.uk)

 

Also Kufatec

 

Complete set rear view camera for VW up! / e-up! (kufatec.com)

 

You need to code after Install and Must have Rear Parking Sensors

 

Kufatec does the coding dongle... thinking about it myself..

 

 

Skoda Citigo - Rear View Camera KIT - RVC with Guidance Lines - Retrofit (carsystems.eu)