Technical Radio wires colour code

[Jimbobjetset]

Hi Some bodge artist hacked off the radio connector in our ducato 2011 to fit a after market radio. They then taped several wires all together. I have tried to go through all the wiring diagrams to find out what each one does but still have 5 unknown ones. Does any one have a list with the colours. Its the ones all taped together I am interested in.