Sirius Satellite Radio SIR-GM1 manual System, For vehicles not wired for satellite radio

System 2

For vehicles not wired for satellite radio

Factory bus connector (removed from headunit)

DO NOT cut or extend the supplied harness. Doing so can cause operation or noise issues.

T-Harness Interface Cable

SIR-GM1

Connector

Factory bus connector

Connect YELLOW wire to the Battery Positive or other good B+ source

OUT

FILTER &	IN
FUSE BOX

Power Harness with Filter

Connect Black wire to a solid Chassis Ground (as short as possible)

SIR-GM1 Installation Guide 11