I n s t a l l a t i o nCopyright © 2007 Nokia. All rights reserved. 92. Installation■ Safety informationThe basic safety guidelines set out below are to be observed wheninstalling the Advanced Car Kit .Note:• Only qualified personnel should service the Advanced CarKit or install it in a vehicle. Faulty installation or servicemay be dangerous and may invalidate any warranty whichmay apply to the unit.• The Advanced Car Kit may only be installed by a qualifiedservice technician using the approved original Nokia partssupplied in the sales package. End users should rememberthat the Advanced Car Kit comprises complex technicalequipment that requires professional installation usingspecial tools and expert know-how.• Note that the instructions contained in this installationguide are general guidelines which apply for theinstallation of the Advanced Car Kit in an automobile.However, due to the wide variety of car types and modelsavailable on the market, this guide cannot consider theindividual technical requirements relevant for anyparticular vehicle. Contact the vehicle manufacturer forfurther detailed information about the vehicle in question.• The Advanced Car Kit is suitable for use only in vehicleswith a 12 volts negative grounding. Use on other supplyvoltages all alternative polarity will damage theequipment.