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INSTALLATION INSTRUCTIONS FOR PART 87-99-3052
APPLICATIONS
CHEVROLET
Blazer 1973-1987
Pickup 1973-1987
GMC
Pickup 1973-1987
Suburban 1973-1987
87-99-3052
KIT FEATURES
• Shaft and DIN Unit Provisions
KIT COMPONENTS
A) Faceplate • B) Radio Housing
A B
TOOLS REQUIRED:
• Phillips Screwdriver • Adjustable Wrench
1-800-221-0932 www.metraonline.com
© COPYRIGHT 2001-2008 METRA ELECTRONICS CORPORATION
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87-99-3052 TABLE OF CONTENTS Dash Disassembly - All Vehicles CHEVROLET Blazer 1973-1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pickup 1973-1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 GMC Pickup 1973-1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Suburban 1973-1987 . . . . . . . . . . . . . . . . . . . . . . . . .
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87-99-3052 DASH DISASSEMBLY/ KIT ASSEMBLY/FINAL ASSEMBLY ALL VEHICLES Chevrolet - Blazer 1973-1987, Pickup 1973-1987 GMC - Pickup 1973-1987, Suburban 1973-1987 1 Disconnect the negative battery terminal to prevent an accidental short circuit. Remove (4) Phillips screws from the lower steering column panel and remove the panel. Remove (8) Phillips screws from the perimeter of the dash trim bezel and remove the bezel. Remove (3) Phillips screws securing the factory head unit and disconnect the
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87-99-3052 KIT ASSEMBLY/FINAL ASSEMBLY ALL VEHICLES Chevrolet - Blazer 1973-1987, Pickup 1973-1987 GMC - Pickup 1973-1987, Suburban 1973-1987 1 DIN HEAD UNITS: Mount the Radio Housing to the sub-dash with (3) Phillips screws previously removed in step #1. (see Fig. A). Scribe the DIN radio opening onto the sub-dash metal, remove the Housing and cut the sub-dash along the scribed line. (see Fig. B). Place the Housing between the dash trim bezel and sub-dash and secure with the same (3) Philli
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87-99-3052 FINAL ASSEMBLY FINAL ASSEMBLY A (A) Strip wire ends back 1/2" B B) Twist ends together C) Solder D) Tape C D Locate the factory wiring harness in the dash. Metra recommends using the 1 proper mating adapter and making connections as shown. (Isolate and individ- ually tape off the ends of any unused wires to prevent electrical short circuit.) 2 Re-connect the negative battery terminal and test the unit for proper operation. Reassemble radio and dash assemblies in reverse order of disa
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87-99-3052 KIT ASSEMBLY/FINAL ASSEMBLY ALL VEHICLES Chevrolet - Blazer 1973-1987, Pickup 1973-1987 GMC - Pickup 1973-1987, Suburban 1973-1987 4 Re-connect the battery terminal and test the unit for proper operation. Locate the rear support provision in the sub-dash ("A"). Using a perforated support strap, mount the back of the unit tosub-dash. the rear sup- port location in the sub-dash. 4
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87-99-3052 NOTES 5
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87-99-3052 INSTRUCTIONS www.metraonline.com 1-800-221-0932 REV. 11/06/08 © COPYRIGHT 2001-2008 METRA ELECTRONICS CORPORATION INST87-99-3052
