- Retains factory features in select GM Class II Data Bus vehicles while functioning with an aftermarket radio. - Pre-programmed to retain factory Steering Wheel Controls. - Recognition Command from factory SWC. - Supports Bose, Y-91 and non-amplified audio systems. - Retains chime functions. - Built-in chime volume adjustment. - Double DIN Dash Kit included. - EIA color coded wiring for easy installation. Buick GMC 2004-2005 Century* 2004--2011 Canyon 2005-2007 LaCrosse* 2002-2009 Envoy 2004-2007 Rainier* 2003-2007 Savana 2003-2005 Rendezvous* 2003-2006 Sierra 2005-2007 Terraza* 2007 Sierra Classic Cadillac 2003-2006 Yukon 2004-2006 Escalade Hummer Chevrolet 2003-2007 H2 2003-2006 Avalanche 2005-2009 H3 2000-2005 Cavalier Isuzu 2004-2013 Colorado 2003-2008 Ascender 2005-2013 Corvette* Oldsmobile 2004-2007 Express 2001-2004 Alero* 2000-2005 Impala* 2002-2004 Bravada* 2000-2005 Monte Carlo* 2000-2004 Silhouette* 2003-2004 S-10 Pontiac 2003-2006 Silverado 2001-2005 Aztec* 2007 Silverado Classic 2001-2005 Grand Am* 2003-2006 SSR 2004-2008 Grand Prix* 2003-2006 Suburban 2000-2006 Montana* 2003-2006 Tahoe 2000-2005 Sunfire* 2002-2009 Trailblazer Saab 2005-2008 Uplander 2005-2008 9-7X 2003-2005 Venture Saturn 2005-2007 Relay 1. The Front and Rear fading are not retained on Y-91 Bose System. 2. Chime includes: seat belt, check engine, key in ignition, low fuel, low oil and lights on. *Analog Steering Wheel Controls. See pages 5 to 8 for Steering Wheel Control functions. 1/8
GM-48D Module GM-48D Harness (GM-C2) SWC Cables Double DIN Dash Kit SETTING THE AFTERMARKET RADIO BRAND With the key in the off position, set the DIP switches to the corresponding radio listed below. 3.5MM SWC CABLE The SWRGM-48D Module allows for both types of connections: OPTION A is used for ALPINE, CLARION, JVC, and KENWOOD units (Blue/Yellow wire is attached) OPTION B is used for BOSS, DUAL, FAHRENHEIT, JENSEN, PIONEER, POWER ACOUSTIK, SONY & SOUND STREAM units. NOTE: Cap or insulate the 3.5mm plug or Blue/Yellow wire if not being used. 2/8
If the vehicle is equipped with a Bose system, the DKGM-48D has a built-in Bose adaptor that allows the proper audio input gain from the aftermarket radio to the Bose amplifier. To use this feature, plug in the male 8-pin connector on the harness to the GRAY female 8-pin connector on the GM-48D module. The module is also labeled Bose and Non Bose to avoid confusion. (see picture below) If the vehicle is NOT equipped with a Bose system, plug in the male 8-pin connector to the BLACK female 8-pin on the GM-48D module. Non-BOSE Connection BOSE Connection The DKGM-48D has a potentiometer to adjust the chime volume. It is set at half way by default. To adjust the volume, simply use a suitable screw driver and turn the potentiometer clockwise to increase the volume and counter-clockwise to decrease the volume. Chime Volume Adjustment 3/8
Please make sure that you have all the parts shown below. (1) Main trim ring (1) Left ISO mounting bracket (1) Right ISO mounting bracket Dash Kit Assembly 4/8
For some Cadillac installation, see diagram below: STEERING WHEEL CONTROL BUTTON FUNCTIONS 4 BUTTON SWC AM/FM Preset Activate VR / Continuous Pick Up Call NOTES: To Deactivate VR = on Pioneer, press PRESET on JVC = say Cancel To Deactivate VR = on Kenwood, long press of PRESET 8 Button SWC ALPINE Up Down Continuous 5/8
CLARION Up Down Preset Up Preset Down Continuous JVC Up Down Continuous NOTE: Say CANCEL to Deactivate VR KENWOOD Up Down Continuous Tune Up Tune Down, Deactivate VR Deactivate VR NOTE: BT Inactive, Up Activate Call History PIONEER Up Down Preset Up Preset Down Continuous Deactivate VR, Deactivate VR 6/8
ANALOG SWC BUICK Century, LaCrosse, Rainier, Rendevous, Terraza CHEVROLET Corvette, Impala, Monte Carlo OLDSMOBILE Alero, Bravada, Silhouette PONTIAC Aztec, Grand Am, Grand Prix, Montana, Sunfire ALPINE Attenuation Continuous CLARION Preset Up Preset Down Continuous JVC Continuous NOTE: Say CANCEL to Deactivate VR KENWOOD Attenuation Continuous, Deactivate VR 7/8
PIONEER Preset Up Preset Down / Deactivate Recognition Continuous BOSS Radio SWC ramming SWC Radio Wiring connection SWC Key1 (Brown-wire) connect to Female 3.5 mm Jack - Brown wire SWC Key2 (White-wire) connect to Female 3.5 mm Jack - Brown/White wire SWC GND (Black-Wire) connect to Radio Negative wire (Black) ramming the Radio Press: [SETTING] > [STEER] > [RESET] > [High Z] Press the Steering Wheel Control (SWC) buttons set the values as listed below: Vol [ 4.07] Vol + [ 3.66] Seek [ 3.37] Seek + [ 2.98] Mode [1.39] OFF Hook [ 0.00] The Value in the bracket [X.XX] will vary and will be used as parameter for each assigned function. Press: [Assign] > [4.07] > [Vol-], then the [4.07] will be replaced with [ Vol-] With [Assign] highlighted: Press: [3.66] > [Vol+], then the [3.66] will be replaced with [Vol+] Press: [3.37] > [Seek-], then the [3.37] will be replaced with [Seek-] Press: [2.98] > [Seek+], then the [2.98] will be replaced with [Seek+] Press: [1.39] > [Mode], then the [1.39] will be replaced with [Mode] Press: [0.00] > [Call], then the [0.00] will be replaced with [Call] Press: [Enter] for Save the setting and Exit 8/8