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Alpine SPT-31GM, Installation Manual

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Alpine SPT-31GM Installation Manual Download Page 1

Chevrolet/GMC

FULL SIZE TRUCK 

˜

 1/14

SPT-31GM
Speaker System for 
Chevrolet/GMC 
Installation Manual

˜

 Model: Select GM Trucks and SUVs

˜

 Model Year: 2014-up Trucks

Introduction

˜ 

Design and specifications are subject to change without notice for improvement.

To Ensure Safe Use, Always Follow These Precautions

˜ 

The installation of this product requires specialized skills and experience. We recommend that you have the 

product installed by an authorized Alpine dealer.

˜ 

Before you use this product, be sure to carefully read this installation manual and the separate user's manual 

so that you can use the product correctly. Alpine Electronics bears no responsibility for problems that arise as 
a result of failure to follow the instructions in the manuals.

˜ 

This manual includes a number of symbols that are intended to help you use the product safely, to prevent 

harm to you and others, and to protect against damage to property. These symbols and their meanings are 
listed below. Make sure you fully understand these symbols before you begin reading the main text.

Explanations of Injury and Damage That May Result from Incorrect Use

 Warning

Ignoring the content marked by this indication and using the product incorrectly is 
expected to lead to death or serious injury.

 Caution

Ignoring the content marked by this indication and using the product incorrectly is only 
expected to lead to injury or property damage.  

Compatible Vehicles*

Year

Model

Configuration

Trim

Chevrolet

2014-up

Silverado 1500

Double Cab

WT, LS, Custom, LT, LTZ

Crew Cab

WT, LS, LT, LT Z71, LTZ, LTZ Z71

Silverado 2500HD

Double/Crew Cab

WT, LT, LTZ

Silverado 3500HD

Double/Crew Cab

WT, LT, LTZ

GMC

2014-up

Sierra 1500

Double/Crew Cab

Sierra, SLE, SLT

Sierra 2500HD

Double/Crew Cab

Sierra, SLE, SLT

Sierra 3500HD

Double/Crew Cab

Sierra, SLE, SLT

*  The specified vehicles have been tested and have met compatibility specifications at the time of testing. 

Compatibility is not guaranteed if the manufacturer has made production changes to the vehicles listed above.  

Factory systems equipped with Bose are not compatible with this system.

Summary of Contents for SPT-31GM

Page 1: ...heir meanings are listed below Make sure you fully understand these symbols before you begin reading the main text Explanations of Injury and Damage That May Result from Incorrect Use Warning Ignoring the content marked by this indication and using the product incorrectly is expected to lead to death or serious injury Caution Ignoring the content marked by this indication and using the product inc...

Page 2: ...cing fuses be sure to use fuses with the specified current rating Failing to do so could lead to an accident or fire Forbidden Mandatory Only connect the product to a 12 VDC negative ground car Failing to do so could lead to an accident or fire Mandatory Before you begin wiring remove the ground wire from the negative terminal of the battery Failing to do so could lead to electric shock or injury ...

Page 3: ... or the like could lead to an accident or damage equipment Caution Connect the product properly according to the instructions Failing to do so could lead to fire or an accident Forbidden Do not sandwich cords between the seat railing or allow them to touch protrusions Resulting breaks or shorts could lead to electric shock or fire Do not block vents or heat sinks Doing so could lead to fire or dam...

Page 4: ...30M Front Speaker Kit 3 Midrange 2 pcs SPT 80W Front Speaker Kit 8 Woofer 2 pcs Foam Gasket 2 pcs SPT 70 Rear Speaker Kit 6 1 2 Coaxial Speakers 2 pcs 4 x 30mm Screws 8 pcs ALP 31GM POD Front Dash Pod Kit Tweeter Pod Assembly 2 pcs Tweeter Pod Template 1 pc 8 16 x 3 8 Screws 10 pcs Washers 10 pcs ...

Page 5: ...r Wire Harness Adapters and Rear Door Speaker Bracket Kit Rear Speaker Adapters 2 pcs Harness Adapters 6 pcs Cable Ties 8 pcs ALP 31GM WBKT Front Door Speaker Bracket Kit Woofer Speaker Adapters 2 pcs 10 x 1 Screws 8 pcs R L ALP 31GM NW 3 Way Speaker Crossover GM Woofer Crossover 2 pcs Tweeter and Midrange Crossover 2 pcs Installation Manual Warranty Card ...

Page 6: ...Chevrolet GMC FULL SIZE TRUCK 6 14 Component Locations Woofer SPT 80W Coaxial Speaker SPT 70 Tweeter SPT 10T Midrange SPT 30M ...

Page 7: ... the arm rest cover and extract 2 x 7mm bolts 1 2 3 4 4 Extract the 2 x 7mm screws at the bottom of the door panel 5 Remove the door panel using a panel removal tool Please note clip locations below 6 Press the clip and pull to release the cable ball from the door panel 7 Unplug the window switch from the back of the door panel 8 Remove the panel completely and set aside ...

Page 8: ...ker wire harness adapter to WF network Door Speaker Wire Harness Adapter Woofer WF Network 2 Mount the WF Network to the bottom rear tab using the cable tie 3 Apply foam gasket to the rear of the SPT 80W Woofer 4 Mount SPT 80W Woofer to the ALP 31GM WBKT Front Door Speaker Bracket Kit with wire terminals at the bottom using 4 x 30mm screws 5 Connect the network output wires to the speaker terminal...

Page 9: ... bolt to secure Ensure that the excess wires do not interfere with door or window components 9 Install the door panel using the reverse procedures 10Repeat the process for the other door panel Rear Door Panel Removal 1 Remove the door handle cover and extract 1 x 7mm bolt 2 Remove the arm rest cover and extract 2 x 7mm bolts 3 Remove 1 x 7mm bolt at the bottom of the door panel 1 3 2 4 Remove the ...

Page 10: ...e door panel 6 Unplug the window switch from the back of the door panel 7 Remove the panel completely and set aside Factory Speaker Removal Rear 1 Remove the factory speaker held by 1 x 7mm screw Retain the original screw for the new speaker replacement 2 Unplug the speaker connector from speaker ...

Page 11: ...g the bottom tab first then use original 7mm bolt to secure Ensure you do not pinch or have the excess wire hanging inside the door panel causing binding of the window when rolled down 7 Install the door panel using the reverse procedures 8 Repeat the process for the other door panel Factory A Pillar Panel 1 Remove the A Pillar cover There are slight differences between model year vehicles and opt...

Page 12: ... 3 Align the template on the upper trim panel speaker grills 4 Mark the holes and area that needs to be cut out 5 Using a cutting tool cut out the template and use a 5 16 8mm drill to cut the holes 6 Install the SPT 10T into the tweeter pod assembly 7 Align the tweeter pod with the holes and mount using 5 pcs 8 16 x 3 8 screws and washers Repeat Steps 4 6 for the other side using the same template...

Page 13: ...hboard speaker wire harness adapter to the factory speaker plug Tweeter MID Network Dashboard Speaker Wire Harness Adapter Midrange TW Network 5 Connect the MID network output wires to the SPT 30M speaker terminals Route the midrange speaker adapters to the factory location 6 Secure the MID network and wires with included zip ties Set aside the tw network cable to connect later Ensure that the net...

Page 14: ...re that the network and wiring do not pinch or interfere with any factory parts 3 Install in reverse order Upper Dashboard Trim Panel and sensor if equipped A pillars 4 Install the A pillar using the reverse procedure and ensure the excess tweeter wires are not exposed Tighten the handle to 6Nm 53lb in 5 Repeat the process for the other A Pillar If there are any questions about the installation pr...

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