Join Date: Jan 2007
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Im not sure there is an adapter to sort this out. But like you said its probably down to communication protocols are different or something. Not sure if pin outs are different tbh.
If its a case that the displays wrong, can you not just buy an update list screen and sell the present one ?
Currently in dave_mezza2006's garage:
2014 Vauxhall Astra Limited Edition 1.4 16v VVT Turbo