Where is the amp on a 2017 Chevy Silverado?

The amplifier, when present on a 2017 Silverado with the Bose Premium Audio system, is typically located under the front passenger seat. Base audio configurations may not have a separate external amplifier, as the audio electronics are integrated into the head unit.

Location can vary by trim and options, and some setups place the amplifier in other areas such as behind the glove box or in the rear cargo area. This article outlines the most common spots and how to confirm which configuration your truck has.

Common amplifier locations

Check these spots, starting with the most common depending on your audio package.

Under the front passenger seat

• For many Bose-equipped Silverados, the amplifier module is mounted under the front passenger seat on the floor or seat rail area.


• Access typically requires sliding the seat forward and removing a cover or bolts to reveal a compact metal or plastic module with a multi-connector harness.


• When working in this area, consider disconnecting the negative battery terminal and following proper safety procedures.

If you locate a labeled amplifier there, you’ve found the primary external amp for the Bose system in that configuration.

Behind the glove box or dash area

• Some trim levels route the amplifier behind the glove box or inside a lower dash panel.


• Access usually involves removing the glove box damper and trim panels to expose a similar-sized electronic box with connectors.


• Look for a GM part number or Bose labeling to confirm it’s an audio amplifier, not a module for another system.

In these layouts, the amp is often connected to the main head unit and the door speakers via multi-pin harnesses.

Rear cargo area or under rear seat

• For models with rear subwoofers or larger premium systems, the amplifier may be located in the rear cargo area or near the sub enclosure.


• Check behind a side panel or under the rear seat cushion where a rectangular amplifier module could be mounted.


• This is less common for base audio but more likely with Bose or higher-end packages that include a subwoofer.

If you have a subwoofer package, expect at least one amplifier near the sub box rather than under the front seat.

How to verify which system you have

To confirm your exact amplifier setup, follow these steps.

1. Check the owner's manual or the vehicle specification label for the audio system designation (for example, Bose Premium Audio vs. standard).


2. Inspect under the front passenger seat for a distinct amplifier module with a GM label and a multi-pin wiring harness.


3. If needed, consult the dealership service portal or VIN-specific documentation to confirm the amplifier location for your trim and options.


4. If you’re not comfortable removing panels or seats, seek help from a professional installer or a qualified mechanic.

These steps help you determine whether your Silverado uses a separate amplifier and where it’s located for maintenance or replacement.

Safety tips and preparation

Working with the vehicle’s electrical system requires care, especially around airbags and power wires.

• Always disconnect the negative battery terminal before removing panels or seats near the audio components.


• Follow the vehicle’s service manual guidance to avoid damaging electrical connectors or triggering airbag systems.


• Label connectors and take photos during disassembly to aid reassembly.

When in doubt, consult a professional technician to prevent injury or damage to the truck’s electronics.

Summary

The 2017 Chevy Silverado’s external amplifier location varies by audio package. The most common spot for Bose-equipped trucks is under the front passenger seat, with alternative placements behind the glove box or in the rear cargo area depending on options like a subwoofer. Confirm your specific configuration via VIN, owner’s manual, or dealer service resources, and consider professional assistance if you’re planning any substantial access or replacement work.

How do I tell if my truck has a factory amp?

Research. You can always use the VIN number your vehicle. Call a local dealer. And actually just give them the VIN number they usually need the last 7 to 10 digits of the VIN.

Where is the factory amp on a 2018 Silverado?

The 2018 Silverado factory amplifier is located on the rear wall of the cab, behind the rear seat on the passenger's side. When replacing the stereo system, you will need to access this location to bypass the factory amp and often install an aftermarket amplifier for a subwoofer. 
You can watch this video to see the process of installing an amplifier in a 2018 Silverado: 55sJordan MoreeYouTube · Nov 10, 2019

• Location: Behind the rear seat, on the passenger's side of the cab. 
• Purpose in aftermarket installation: To bypass the factory system when installing an aftermarket stereo and/or subwoofer. 

This video explains how to determine if your vehicle has a factory amplified system: 26sSonic ElectronixYouTube · May 3, 2016

Where is the factory amplifier located?

The factory amplifier's location varies by vehicle, but common spots include under the front seats, in the dashboard (near the steering column or glove box), or in the trunk or rear quarter panel. A simple way to start is to look for concentrated wiring or a specific emblem on the radio or doors, which can help narrow down the search area for your make and model. 
This video demonstrates how to find a factory amplifier in a Nissan Xterra: 58sFive Star Car StereoYouTube · Feb 23, 2023
Common locations by vehicle type

• Under seats: Many vehicles, especially those with rear seats, place the amplifier underneath the passenger or driver's rear seat. 
• Dashboard: In some cars, the amplifier is located behind the dashboard, often to the left of the steering column or above the glove box. 
• Trunk or rear: Look in the trunk, either behind a rear quarter panel or on the parcel shelf, particularly in many German cars. 
• Center console: Some models have the amp integrated higher up in the center console. 
• Kick panel: You might find the amplifier in the kick panel area, most often on the passenger side. 

This video shows how to find a Toyota Tundra factory amplifier: 1mJPtheinstallguyYouTube · Aug 12, 2024
How to narrow down the search

• Check for emblems: Premium sound systems often have a brand emblem (like JBL or Bose) on the head unit or door panels, indicating an amplifier is present. 
• Trace the wires: Inspect the floor sills for a bundle of wires, which can help you determine if the amplifier is likely located in the front or rear of the vehicle. 
• Use your VIN: You can call a dealership with your VIN to ask about the original equipment, including whether an amplifier was installed. 

How many amps is the alternator on a 2017 Silverado?

Notes: 150 Amp.