Os-2 Onstar® Interface (For Gm Non-Bose® Vehicles): R

REPLACES FACTORY RADIO IN 2003"“2006 GM SUVS & TRUCKS WHILE RETAINING ONSTAR® ; PLUG-&-PLAY, NO CUTTING OR ;SPLICING INTO FACTORY PLUG ; PACOS2/PACOS2 BOSE COMMUNICATE DIRECTLY WITH THE ONSTAR® MODULE TO PREVENT FALSE ;TRIGGERING & ELIMINATING UNWANTED AUDIO NOISE ; ON-BOARD AMPLIFIER WILL DRIVE TWO 4W SPEAKERS IN STEREO ; USE WITH THE EXISTING FACTORY SPEAKERS OR EXTERNAL SPEAKERS; FOR 2000-2004 CHEVROLET MONTE CARLO, IMPALA & SUNFIRE; 2004 CHEVROLET SILVERADO & VENTURE; 2002-2004 CHEVROLET TRAIL BLAZER NON-BOSE® & GMC ENVOY SLE; 2004 GMC SAVANA & SIERRA; 2001-2004 PONTIAC MONTANA; 2004 PONTIAC GRAND PRIX GTP; 2003 OLDSMOBILE BRAVADA & GMC EXPRESS 2005