WARNING: This page is about a different car, the 2004 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: TV Antenna Module and Amplifiers, TV Rear Glass Antenna and Auxiliary RCA Video Jacks (Export w/ U2Y/U2X)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Traffic Information Receiver (Japan w/ U2X/U2Y)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Navigation Antenna, Radio, Audio Amplifier, VCIM and ISRVM