REPLACES FACTORY RADIO IN 1996 2002 GM SUVS & TRUCKS WHILE RETAINING ONSTARPLUG & PLAY NO CUTTING OR SPLICING INTO FACTORY PLUGCOMMUNICATES DIRECTLY WITH ONSTAR ;MODULE TO PREVENT FALSE TRIGGERING & ELIMINATING UNWANTED AUDIO NOISEON-BOARD AMPLIFIER WILL ;DRIVE TWO 4W SPEAKERS IN STEREO USE WITH EXISTING FACTORY SPEAKERS OR EXTERNAL SPEAKERSFOR NON-BOSE VEHICLESUPC : 606523105620Shipping Dimensions : 8.50in X 4.00in X 2.75inEstimated Shipping Weight : 0.7313