Wiring the OEM-2 and aftermarket stereo to a GM factory Bose ...

Mobile Audio Interfacing EquipmentWiring the OEM-2 and aftermarket stereo to a GMfactory Bose Premium Sound SystemImportant!If you are using the supplied wire harness from Crutchfi eld, or other aftermarket wire harness either from Metra, Scosche orAmerican International, you can not connect the audio signal wires of the supplied wire harness to the OEM-2 color for color (youmay however, connect the red, black, blue, orange, and yellow wire color for color). The wire harness supplied by Crutchfi eld or otherabove mentioned wire harnesses are not designed for Bose Premium Sound Systems. You will need to trace the factory wire colorsand match them over to the aftermarket harness. Connect the OEM-2 outputs according to the chart.The factory wire colors given are typical of most GM vehicles with a Bose Premium Sound System. If the colors do not match up,you will need to obtain a wiring diagram of your vehicle from a dealer. In some vehicles the audio common wires could have a stripedwire.NOTES: 4 possible GM plug confi gurations.GM21 and GM21A: has a bare shield wire for both fronta rear speakers.GM21B: has no bare shield wire and has common wiresfor front and rear.GM21C: has a positive and negative wire for eachspeaker.Use the shield wire(s) as a guide to determine whichchart to use.12 13 14 15 16 17 18 1911 202 3 4 5 6 7 8 91 10Factory GM 21 pin plugViewed from pin side not wire sideFactory plug.Connect these wires toGM21OEM-2Factory plug.Connect these wires toGM21BOEM-21 = front audio shield, bare wire2 = left front positive (LF+), tan3 = right and left front common (-), lt. grn4 = right front positive (RF+), dark green5 = chassis ground, black6 = illumination/dimmer, gray7 = n/a8 = remote turn on, pink9 = 12 volt ignition/switched (+12), yellow10 = 12 volt battery/constant (+12), orange17 = rear audio shield, bare wire18 = right rear positive (RR+), dark blue19 = right and left rear common (-), yellow20 = left rear positive (LR+), dark brownblack wirewht wirewht/blk and gry/blk wiresgry wireblack wireorange wiren/ablue/whtred wireyellow wireblack wirepurple wireprp/blk and grn/blk wiresgrn wire1 = n/a2 = left front positive (LF+), tan3 = n/a4 = right front positive (RF+), dark green5 = chassis ground, black6 = illumination/dimmer, gray7 = n/a8 = remote turn on, pink9 = 12 volt ignition/switched (+12), yellow10 = 12 volt battery/constant (+12), orange17 = audio common18 = right rear positive (RR+), dark blue19 = n/a20 = left rear positive (LR+), dark brownn/awht wiren/agry wireblack wireorange wiren/ablue/whtred wireyellow wireprp/blk, wht/blk, gry/blk and grn/blk wirespurple wiren/agrn wireFactory plug.Connect these wires toGM21AOEM-2Factory plug.Connect these wires toGM21COEM-21 = left front positive (LF+), tan2 = right and left front common (-), lt. grn3 = right front positive (RF+), dark green4 = front audio shield, bare wire5 = chassis ground, black6 = illumination/dimmer, gray7 = n/a8 = remote turn on, pink9 = 12 volt ignition/switched (+12), yellow10 = 12 volt battery/constant (+12), orange17 = right rear positive (RR+), dark blue18 = right and left rear common (-), yellow19 = left rear positive (LR+), dark brown20 = rear audio shield, bare wirewht wirewht/blk and gry/blk wiresgry wireblack wireblack wireorange wiren/ablue/whtred wireyellow wirepurple wireprp/blk and grn/blk wiresgrn wireblack wire1 = left front negative (LF-), gray2 = left front positive (LF+), tan3 = right front negative (RF-), dark green4 = right front positive (RF+), lt. green5 = chassis ground, black6 = illumination/dimmer, gray7 = n/a8 = remote turn on, pink9 = 12 volt ignition/switched (+12), yellow10 = 12 volt battery/constant (+12), orange17 = right rear negative (RR-), lt. blue18 = right rear positive (RR+), dark blue19 = left rear negative (LR-), yellow20 = left rear positive (LR+), brownwht/blk wirewht wiregry/blk wiregry wireblack wireorange wiren/ablue/whtred wireyellow wireprp/blk wirepurple wiregrn/blk wiregrn wireDocument and Material Disclaimer: All information, including photos and illustrations, in these pages is believed to be correct and reliable. The informationcontained in these pages is given as general information for the installation of audio accessories into mobile and/or vehicle applications. PACIFIC ACCESSORYCORPORATION shall not be held liable for any damages and/or injuries resulting from the use of information contained in these pages. All information contained inthese pages should be checked and verifi ed with appropriate test equipment to assure the safety and proper operation of equipment installed and the vehicle itself.Copyright © 2002 Pacifi c Accessory Corporation.11-08-02Pacifi c Accessory Corporation - 1502 S. Santa Fe Street, Santa Ana, CA 92705techsupport@pac-audio.com • Voice: 714-835-3022 • Fax: 714-835-3233 • www.pac-audio.com Page 1

NOTES: 2 possible plug confi gurations.GM32: has one audio shield wire.GM32A: has two audio shield wires.Use the shield wire(s) as a reference toselect which chart to use.E1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16F1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16Factory GM 32 pin plugViewed from pin side not wire sideFactory plug.Connect these wires toGM32OEM-2Factory plug.Connect these wires toGM32AOEM-2Row E1 = n/a2 = n/a3 = remote turn on4 = n/a5 = n/a6 = n/a7 = n/a8 = n/a9 = n/a10 = n/a12 = left rear positive (LR+)13 = n/a14 = n/a15 = right rear positive (RR+)16 = chassis groundn/an/ablue/wht wiren/an/an/an/an/an/an/agrn wiren/an/aprp wireblack wireRow E1 = n/a2 = n/a3 = remote turn on4 = n/a5 = n/a6 = n/a7 = n/a8 = n/a9 = n/a10 = n/a12 = left rear positive (LR+)13 = rear audio shield, bare wire14 = rear audio common return (-)15 = right rear positive (RR+)16 = chassis groundn/an/ablue/wht wiren/an/an/an/an/an/an/agrn wireblack wireprp/blk and grn/blk wireprp wireblack wireRow F1 = constant 12 volts2 = accessory 12 volts3 = antenna remote turn on4 = illumination/dimmer5 = n/a6 = n/a7 = n/a8 = n/a9 = n/a10 = n/a12 = left front positive (LF+)13 = audio shield, bare wire14 = audio common return (-)15 = right front positive (RF+)16 = n/ayellow wirered wireblue wireorangen/an/an/an/an/an/awht wireblack wireprp/blk,grn/blk,gry/blk and wht/blk wiresgry wiren/aRow F1 = constant 12 volts2 = accessory 12 volts3 = antenna remote turn on4 = illumination/dimmer5 = n/a6 = n/a7 = n/a8 = n/a9 = n/a10 = n/a12 = left front positive (LF+)13 = front audio shield, bare wire14 = front audio common return (-)15 = right front positive (RF+)16 = n/ayellow wirered wireblue wireorangen/an/an/an/an/an/awht wireblack wiregry/blk and wht/blk wiresgry wiren/aGMABHJBLACKWHITEBLUEFECDKLViewed from pin side not wire sideFactory plug.Connect these wires toGM12A = right front positive (RF+), lt. grnB = left front positive (LF+), tanC = front shield, bare wireD = right front negative, left front negativeE = remote turn on, pinkF = 12 volt ignition/switched (+12), yellowG = ground, blackH = left rear positive (LR+), brownJ = right rear positive (RR+), dark blueK = left rear negative, right rear negativeL = rear shield, bare wireM = illumination/dimmer, grayon separate two pin, white plug, orangewire is constant 12 volts.Late 1984 and later models onlyOEM-2gry wirewht wireblack wiregry/blk and wht/blk wireblue/wht wirered wireblack wiregreen wireprp wireprp/blk and grn/blk wireblack wireorange wireyellow wirePacifi c Accessory Corporation - 1502 S. Santa Fe Street, Santa Ana, CA 92705techsupport@pac-audio.com • Voice: 714-835-3022 • Fax: 714-835-3233 • www.pac-audio.com Page 2