2017 GMC Sierra 1500 Speaker Sizes and Audio System Guide
2017 GMC Sierra 1500 Speaker Sizes and Audio System Guide
This page outlines the factory speaker locations, sizes, and upgrade considerations for the 2017 GMC Sierra 1500. Equipment can vary by trim, body style, and audio package, so the exact setup should be verified against the specific vehicle. Factory amplifier details should also be checked by trim and audio package, and selected audio systems may include tweeters or a subwoofer if equipped.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2017 GMC Sierra 1500
Use this table as the main reference. Fitment depends on trim, factory audio package, mounting depth, and adapter availability.
| Location | Type | Factory Size | Note |
|---|---|---|---|
| Front Pillar | Tweeter | 2.5 inch | if equipped |
| Front Door | Full-Range | 6 x 9 inch | |
| Rear Door | Full-Range | 6.75 inch | |
| Front Center Console | Subwoofer | 6.5 inch | if equipped |
Generic speaker location diagram. The table above shows the specific factory sizes for this vehicle. Exact location details may vary by body style and trim.
Speaker Count by Trim – 2017 GMC Sierra 1500
Speaker count and audio equipment vary by trim and factory audio package. This table lists known configurations from our database.
| Trim | Speakers | Amplifier | Radio | Navigation |
|---|---|---|---|---|
| Denali 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 7 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 7 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| Denali 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 7 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| Base 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | AM/FM stereo, seek-scan | – |
| Base 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | AM/FM stereo, seek-scan | – |
| Base 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | – | AM/FM stereo, seek-scan | – |
| SLE 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| SLE 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| SLE 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | – | AM/FM/HD/Satellite, seek-scan | ✓ |
| SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | opt | AM/FM/HD/Satellite, seek-scan | ✓ |
| SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | opt | AM/FM/HD/Satellite, seek-scan | ✓ |
| SLT 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | opt | AM/FM/HD/Satellite, seek-scan | ✓ |
Data sourced from manufacturer specifications. Verify with the window sticker or dealer before ordering audio components.
Vehicle and Audio System Specifications
This block helps identify the vehicle and its audio system configuration for fitment decisions.
What Speakers Fit the 2017 GMC Sierra 1500?
Aftermarket fitment should start with the factory speaker locations listed above, but diameter alone is not enough. Check mounting depth, bracket shape, connector type, and whether the truck uses a premium or factory-amplified audio system. The 2017 GMC Sierra 1500 uses a 6 to 7 speaker layout depending on trim, so the safest match depends on the exact audio package. Selected audio systems may also include a 6.5 inch front center console subwoofer if equipped.
Usually Safe Upgrades
- If your vehicle uses the front door location, a 6 x 9 inch full-range speaker is the factory size to match.
- If your vehicle uses the rear door location, a 6.75 inch full-range speaker is the factory size to match.
- If your vehicle uses the front pillar location, a 2.5 inch tweeter may be present if equipped.
- If your vehicle uses the front center console location, a 6.5 inch subwoofer may be present if equipped.
Check Before Buying
- Confirm the trim and audio package before ordering, since speaker count and amplifier details can vary.
- Measure mounting depth and verify the factory bracket style before choosing a replacement speaker.
- Check the connector type at each location so you know whether an adapter or harness is needed.
- Verify whether the truck has the optional tweeter or subwoofer locations before planning an upgrade.
Installation Notes
The 2017 GMC Sierra 1500 uses factory speaker locations that can vary by trim and audio package, so verify the exact setup before ordering parts. Front door openings use 6 x 9 inch full-range speakers, and rear door openings use 6.75 inch full-range speakers. Front pillar tweeters may be present if equipped, and if your vehicle has the factory subwoofer, confirm the 6.5 inch location before planning the upgrade. Panel removal is required at the doors and any equipped pillar or console locations, so work carefully to avoid breaking clips or damaging trim. Check speaker depth and magnet clearance before installation, especially in the front doors where space can be tight. Mounting adapters may be needed to match the factory openings, and harness adapters help keep the wiring clean and reversible. Factory amplifier details should be verified by trim and audio package, since equipment can vary. After installation, test balance, fade, and all speaker locations before reassembling the panels.
Moderate difficulty, since trim removal, fitment checks, and wiring verification are important before the speakers are installed.
Common Mistakes When Replacing Speakers
Here are the most common mistakes to avoid when planning speaker upgrades for a 2017 GMC Sierra 1500.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle. This model uses direct location data, and equipment can vary by trim and audio package, so confirm the speaker layout on the truck before ordering parts.
- Ignoring trim and audio package differences. Speaker count ranges from 6 to 7, and factory amplifier details should be verified by trim and audio package because some versions may include different audio equipment.
- Assuming the optional tweeter is always present. Front pillar tweeters are listed only if equipped, so verify whether your truck has them before choosing replacement parts or adapters.
- Overlooking the optional front center console subwoofer. The 6.5-inch subwoofer is listed only if equipped, so check the vehicle’s audio setup before planning bass upgrades or enclosure changes.
- Skipping connector and mounting-depth checks. Even with the correct speaker size, you still need to confirm the factory connectors, mounting depth, and any adapter requirements before buying new speakers.
- Reassembling the doors or dash before testing the system. Always test each speaker for correct operation, balance, and polarity first so you can catch wiring or fitment issues before everything is put back together.
Generation & Model Family
The 2017 GMC Sierra 1500 belongs to the Fourth generation (GMTK2XX) - Facelift (2016–2018) family. Nearby model years often share similar speaker locations and audio layouts, but exact fitment can vary by trim and audio package – verify before ordering.
Recommended Upgrade Path
The 2017 GMC Sierra 1500 uses a 6–7 speaker setup depending on trim, and equipment can vary by audio package. Front-stage upgrades usually give the biggest improvement first, especially when you want cleaner vocals and more detail. Factory amplifier details should be verified by trim and audio package before planning any larger system changes.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add front pillar tweeters if equipped to improve the front stage and bring out cleaner highs and mids. | This model includes front pillar tweeters if equipped, so focusing on the front stage gives the most noticeable improvement in clarity and detail. |
| More bass | If the factory subwoofer is equipped, plan around it carefully and add an aftermarket subwoofer system to strengthen low-end output. | The factory subwoofer is trim-dependent, so checking the existing setup first helps you choose a bass upgrade that works with the truck’s current audio package. |
| Louder sound | Properly matched speakers and amplifier integration can improve volume and reduce distortion. Verify factory amp and premium system integration before adding aftermarket amplifiers. | Some trims may include amplifier-related audio equipment, so confirming the system layout first helps avoid integration problems and keeps the upgrade balanced. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers with correct mounting brackets. | The front doors are the most-used speakers in daily driving, so this is usually the most cost-effective way to improve sound without changing the whole system. |
| Factory look | Use same-size replacement speakers with the correct mounting brackets and harness adapters for a clean install that preserves the factory wiring and appearance. | This approach keeps the cabin looking original while improving sound, which is ideal if you want a subtle upgrade that blends in with the truck’s interior. |
Mounting Adapters and Wiring
The same nominal diameter does not guarantee a direct mount. Before ordering, confirm:
- Speaker depth: Aftermarket speakers often have larger magnets – measure available depth at each location.
- Mounting brackets: Door locations typically need a bracket or spacer to clear the window regulator and achieve correct mounting depth.
- Wiring harness adapters: Use a plug-and-play harness adapter to preserve factory wiring.
- Tweeter mounting cups: Replacing OEM tweeters may require surface-mount cups or brackets depending on the location.
- Factory or premium amplified systems: If the vehicle has a premium or factory-amplified audio system, confirm how the factory radio, amplifier, and speakers are connected before adding aftermarket amplifiers. Depending on the setup, a line output converter, DSP, integration harness, or professional installation may be needed.
- Connector type: Factory connectors vary by trim and model year – confirm compatibility before splicing or using an adapter.
Frequently Asked Questions
What size are the front door speakers in a 2017 GMC Sierra 1500?
The front door speakers are 6 x 9 inch full-range units. Front pillar tweeters are listed if equipped, so speaker layouts can vary by audio package.
What size are the rear door speakers?
The rear door speakers are 6.75 inch full-range speakers. Some audio systems may also include front pillar tweeters if equipped.
Does the 2017 GMC Sierra 1500 have a factory subwoofer?
A 6.5 inch front center console subwoofer is listed if equipped. Availability can vary by trim and audio package, so it should be verified before ordering parts.
Do I need mounting adapters to replace the speakers?
Mounting adapters may be needed because the factory speaker sizes are specific to the vehicle. Check the speaker location and size before choosing replacement parts.
Can I replace the speakers without replacing the radio?
Yes, speaker upgrades can be done without replacing the radio. The factory radio setup varies by trim, so matching the new speakers to the existing system is important.
Does the 2017 GMC Sierra 1500 have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. Some trims list amplifier equipment, while others do not, so the audio system should be checked before planning upgrades.