In some cases certain vehicle manufacturers will ask you to have an approved product installed see below which tracker the manufacturer uses as a preferred product. AUDI prefers VODAFONE BMW prefers TRACKSTAR BENTLEY prefers VODAFONE JAGUAR prefers TRACKSTAR LAMBORGHINI prefers VODAFONE MERCEDES BENZ prefers TRACKER PORSCHE prefers VODAFONE RANGE ROVER prefers TRACKSTAR ROLLS ROYCE prefers VODAFONE SEAT prefers VODAFONE SKODA prefers VODAFONE VOLKSWAGEN prefers VODAFONE VW COMMERCIAL prefers META... Read more