Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install the mode cable to the IP carrier.
Connect the mode cable to the heater/ventilation module.
Install the heater control assembly.
Install the radio. Refer to RADIO REPLACEMENT (NON-DIGITAL RADIO) or RADIO REPLACEMENT (DIGITAL RADIO) .

Fig 1: Installing Mode Cable To IP Carrier

Courtesy of GENERAL MOTORS CORP.