ok so this is all thats required to fit the ncdr1100 /cid / cdc3
one pre made 26 pin to 36 pin adapter

removal of pin 10 and 11 from the MID 32 pin plug

adding the green and white can bus wires to the 32 pin MID plug pin 10 = green and pin 11 = white
tape the other to wire up so theres no shorts then plug in the 32pin and the 12 pin in to the CID screen

plug in cdc3 to the existing cdc3 wiring in the glove box the adapter into the original radio plug and the new plug into the ncdr 1100

the spare astra now has a color screen and sat nav 🙂
all tested for connection to the right pin on the odb
cdc

cid

ncdr1100 no part number showing as its in safe mode or opcom's inability to pair it

hopefully going to see pecky again tomorrow so will see if he can pair them up right