Join Date: Jan 2007
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Any sat nav with the Sirf Star 3 chipset in will work with a heat reflecting windscreen. My Tom Tom One v2 worked fine in my Laguna II when I had the Laguna.
I imagine it would be much cheaper to replace the sat nav unit than the windscreen.
Currently in dave_mezza2006's garage:
2014 Vauxhall Astra Limited Edition 1.4 16v VVT Turbo