91 Retrofitting mobile communication systems · In gen~ral, it is necessary to get approval Expertly

911 Carrera (996) Radio, telephone, on-board computer, navigation 91 Retrofitting mobile communication systems In gen~ral, it is necessary to get approval Expertlyinstalled mobile phonesand radios for th~installationof mobilecommunication do not adverselyaffect important vehicle syste s (car telephone,mobile phone, two-way systems such as ABS, airbag and Motronic. radios etc.) In a vehicle that received its type However, it is a prerequisite that there is approval after 1 st January, 1996. no tampering in the installationand wiring of these systems. Parallelrouting of wires Retroffited mobile phonesand radios must have to these systems and their wiring harnesses a type approval for this vehicle and be equipped (particularlysensor wires) is not permitted. with alii e-mark. Porsche ha~5provided an approval for mobile Phoner and radios with a maximumtransmitter power of 1() watts in the Driver's Manualof its vehicles. The installation instructions and recommendationscontained there must be observed. Porsche p'~rmits the installation and use of radio equipment over lOW for the communications services listed in the table Linder the following conditions: The transmitter power in the given frequency range must not exceed the stated Pmax values at the base of the aerial. Installa1:ionmust be carried out expertly and a ron-reflecting, adapted outer aerial must b~ employed. rije manufacturer'soperatingandinstallation in$tructionsfor mobilephones,radiosand aerialsmustbe observed. 91 Retrl~fitting mobile communication systems 91 -13 Printed in Ge,rmany -18, 1998 9969113