Sirius Satellite Radio SIR-GM1 - Manual (Page 10)

10 SIR-GM1 Installation Guide
System Connection Examples
System 1
For vehicles pre-wired for satellite radio
Factory SDAR
Interface Cable
Factory wiring
h a r n e s s
Remove the Factory XM Tuner and
connect the SDAR Interface Cable
NOTE: If installing into a Cadillac CTS, a slight modification of the Factory SDAR Interface Cable
is required. Please see the attached technical sheet for details.
DO NOT cut or extend the supplied
harness. Doing so can cause operation
or noise issues.