Circuit/System Description
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
The telematics communication interface control module receives information from a specific cellular phone and navigation antenna located on the outside of the vehicle. The cellular phone and navigation antenna is connected to the telematics communication interface control module via a shielded coaxial cable. The antenna cable also provides a path for DC current for powering the antenna.