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hillbillyinOhio -> Stereo Wiring and Install Parts (6/14/2007 6:24:26 PM)
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Want to upgrade your factory radio and/or your speakers? Here is all the info that you will need. You will need certain parts to install your new radio. The parts are: antenna adaptor only 1989 to 2005), a wiring harness, and a dash kit. The part numbers for these are as follows. *(M) stands for Metra Parts. If you have a 1st Generation S-10 (1982-1993)* you have 4x6 plates in the dash, and 4X10's in the side panels, or in the rear pillar. The wiring harness to add an aftermarket radio is 70-1677-1 (Metra) and GM01B (Scosche). The dash kit is 99-4544 (M), and Gm1500B (S) *Antenna adaptor is 40GM-10 (only for Years 1989-1993) If you have a 1st Generation S-10 Blazer (1982-1994)*, you have 4x6 plates in dash, and 6x9's in rear on side panel (4-doors will have 6 1/2's in rear doors instead of 6x9's) The wiring harness is 70-1677-1 (M) and GM01B (S) The dash kit is 99-4544(M) and GM1500B (S) *Antenna adaptor is 40GM-10 (only for Years 1989-1994) If you have a 2nd Generation S-10 (1994- 2003)* you have 4x6’s in the dash, 6 ½’s in the doors, and 4x6’s in the rear panel. Some models will not have an actual 4x6 in the dash, rather either a blank plate or a 1” tweeter in a 4x6 plate. The wiring harness for 1994-2001 is 70-1858 (M) and GM02B (S) The dash kit for 1994-1997 is 99-3043 / 99-3044 (M) and GM1515 (S) The dash kit for 1998-2001 is 99-3300 (M) and GM1588B (S) The wiring harness for 2002-2003 is 70-2003 (M) and GM05B (S) The dash kit for 2002-2003 is 99-2003 / 99-2001 / 99-3301 (M) and GM1583B (S) * Antenna adaptor is 40GM-10 (needed on all S-Series Trucks from 1994-up) If you have a 2nd Generation S-10 Blazer / Blazer (1995-2005)* you have 4x6’s in the dash, 6 ½’s in doors and 6x9’s in rear side panel. On 4-Door models, you have 6 ½’s in all 4 doors. The wiring harness for 1995-2001 is 70-1858 (M) and GMO2B (S) The dash kit for 1995-1997 is 99-3043 / 99-3044 (M) and GM1515 (S) The dash kit for 1998-2001 is 99-3300 (M) and GM1588B (S) The wiring harness for 2002-2005 is 70-2003 (M) and GM05B (S) The dash kit for 2002-2005 is 99-2003 / 99-2001 / 99-3301 (M) and GM1583B * Antenna adaptor is 40GM-10 (needed on all S-Series Trucks from 1994-up)
For Blazers and S-10s (including Bravada, Sonoma, Jimmy, Full-Size) the actual stereo wiring is as follows Constant 12V+ Orange
Switched 12V+ Yellow
Ground Black
Illumination Gray
Dimmer Brown
Antenna Trigger Pink
Antenna Right Front
Front Speakers 4" x 6" Dash
Left Front (+) Tan
Left Front (-) Gray
Right Front (+) Light Green
Right Front (-) Dark Green
Rear Speakers 6" x 9" Side Panels
Left Rear (+) Brown
Left Rear (-) Yellow
Right Rear (+) Dark Blue
Right Rear (-) Light Blue
For 2002 up blazers the wiring is as follows:
Radio 12v orange + radio harness
Radio Ground black - radio harness
Radio Ignition dk. green + radio harness
Radio Illumination gray (dimmer) + radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- tan - gray +,- radio harness
RF Speaker +/- lt. green - dk. green +,- radio harness
LR Speaker +/- brown - yellow +,- radio harness
RR Speaker +/- dk. blue - lt. blue +,- radio harness
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