Join Date: Jan 2007
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Hi there and welcome to the forum.
Your best bet to get the correct paint colour match for your car is to get it from the main dealer.
Not too sure about your second question. Maybe your model of car didnt have that feature fitted ? You may be lucky and have all the wiring present and all you would need to do was fit the sensor into the mirror housing. But without taking the wing mirrors apart to look, you wont know.
Currently in dave_mezza2006's garage:
2014 Vauxhall Astra Limited Edition 1.4 16v VVT Turbo