DeVille DTS V8-4.6L VIN 9 (2002)
Front Speakers
Radio/Audio System Schematics: W/U57 (Front Speakers)
"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID".
See: Application and ID/RPO Codes
Rear Speakers