GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Body and Accessories 🢒 Cellular Communication 🢒 Cellular Telephone Schematics
Figure 1:

Power, Ground, and Class 2
Object Number: 879887 Size: FS
Figure 2:

Vehicle Communication Interface Module (VCIM), Microphone, Audio Amplifier (Early Production)
Object Number: 789520 Size: FS
Figure 3:

Vehicle Communication Interface Module (VCIM), Microphone, Audio Amplifier (Late Production)
Object Number: 1202052 Size: FS
Figure 4:

Cellular Telephone Interface Board
Object Number: 789521 Size: FS
Figure 5:

Web Radio
Object Number: 789523 Size: FS