2016 GMC Sierra 1500 Speaker Sizes and Audio System Guide
2016 GMC Sierra 1500 Speaker Sizes and Audio System Guide
This page covers the factory speaker layout and upgrade considerations for the 2016 GMC Sierra 1500. Equipment can vary by trim, body style, and audio package, so speaker count and audio hardware may differ across the lineup. Use the details here to verify speaker locations, factory sizes, and any notes that can help you plan a clean upgrade for your truck.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 2016 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 Door | Full-Range | 6 x 9 inch | |
| Dash Corner | Full-Range | 2.5 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 – 2016 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 | – | – | – |
| Denali 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 7 | – | – | – |
| Base 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | – | – |
| Base 4x2 Double Cab 6.6 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 | – | – | – |
| Base 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | – | – | – |
| Base 4x4 Double Cab 6.6 ft. box 143.5 in. WB | 6 | – | – | – |
| SLE 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | – | – |
| SLE 4x2 Double Cab 6.6 ft. box 143.5 in. WB | 6 | – | – | – |
| SLE 4x2 Regular Cab 6.6 ft. box 119 in. WB | 6 | – | – | – |
| SLE 4x2 Regular Cab 8 ft. box 133 in. WB | 6 | – | – | – |
| SLE 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | – | – | – |
| SLE 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | – | – | – |
| SLE 4x4 Double Cab 6.6 ft. box 143.5 in. WB | 6 | – | – | – |
| SLE 4x4 Regular Cab 6.6 ft. box 119 in. WB | 6 | – | – | – |
| SLE 4x4 Regular Cab 8 ft. box 133 in. WB | 6 | – | – | – |
| SLT 4x2 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | opt | – | – |
| SLT 4x2 Double Cab 6.6 ft. box 143.5 in. WB | 6 | opt | – | – |
| SLT 4x4 Crew Cab 5.75 ft. box 143.5 in. WB | 6 | opt | – | – |
| SLT 4x4 Crew Cab 6.5 ft. box 153.5 in. WB | 6 | opt | – | – |
| SLT 4x4 Double Cab 6.6 ft. box 143.5 in. WB | 6 | opt | – | – |
| Base 4x2 Regular Cab 6.6 ft. box 119 in. WB | 4 | – | AM/FM stereo, seek-scan | – |
| Base 4x2 Regular Cab 8 ft. box 133 in. WB | 4 | – | AM/FM stereo, seek-scan | – |
| Base 4x4 Regular Cab 6.6 ft. box 119 in. WB | 4 | – | AM/FM stereo, seek-scan | – |
| Base 4x4 Regular Cab 8 ft. box 133 in. WB | 4 | – | AM/FM stereo, 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 2016 GMC Sierra 1500?
Aftermarket fitment should start with the factory speaker locations listed above, but diameter alone is not enough. Check mounting depth, bracket fit, connector type, and whether the vehicle has a premium or factory-amplified audio system. This 2016 GMC Sierra 1500 uses different speaker sizes depending on location, and equipment can vary by trim. The front center console subwoofer is listed only if equipped, so verify that location before ordering any bass upgrade.
Usually Safe Upgrades
- If your vehicle uses the front door location, 6 x 9 inch full-range speakers are the factory size to match.
- If your vehicle uses the dash corner location, 2.5 inch full-range speakers are the factory size to match.
- If your vehicle uses the rear door location, 6.75 inch full-range speakers are the factory size to match.
- If your vehicle uses the front center console location, a 6.5 inch subwoofer may be present if equipped.
Check Before Buying
- Confirm the exact trim and audio package, since speaker count and amplifier details can vary by configuration.
- Measure mounting depth and compare the factory opening before choosing an aftermarket speaker.
- Verify the connector style and any bracket or adapter needs before purchase.
- Check whether the vehicle has the optional front center console subwoofer if you are planning a bass upgrade.
Installation Notes
Installing speakers in the 2016 GMC Sierra 1500 usually starts with careful panel removal at the front doors, rear doors, and dash corner locations. Use trim tools to avoid damaging clips, and disconnect the battery if you will be working around any wiring or audio components. Speaker size and depth matter here, so verify clearance before ordering parts, especially for the 6 x 9 inch front door openings and the 6.75 inch rear door locations. Mounting adapters may be needed to match the factory openings, and wiring harness adapters can help keep the factory wiring intact. Factory amplifier details should be verified by trim and audio package, since equipment can vary across trims. If your vehicle has the factory subwoofer, plan for the extra space and wiring checks before removal. After installation, test each speaker location for balance, polarity, and proper operation before reinstalling all panels.
This is a moderate install because trim removal, speaker depth, and trim-dependent audio equipment can make the job more involved.
Common Mistakes When Replacing Speakers
When shopping for a 2016 GMC Sierra 1500 audio upgrade, the biggest errors usually come from assuming every truck shares the same speaker layout or audio package.
- Buying based only on the body-style label instead of checking actual speaker locations on the vehicle.
- Ignoring trim and audio package differences, since speaker count can range from 4 to 7 and factory amplifier details should be verified by trim and audio package.
- Assuming the front center console subwoofer is always present, when it is listed as optional and should be treated as if equipped.
- Skipping mounting depth and connector checks before ordering speakers, which can lead to fitment problems even when the size looks correct on paper.
- Overlooking the dash corner speakers and other factory locations during planning, which can leave part of the system unchanged or mismatched.
- Reassembling everything before testing the system, instead of confirming each speaker plays correctly and the balance is right while access is still open.
Generation & Model Family
The 2016 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 2016 GMC Sierra 1500 uses a speaker layout that can vary by trim and audio package, so the best upgrade plan depends on what is already in the truck. Most buyers start with the front stage, then add bass or power as needed. Factory amplifier details should be verified by trim and audio package before choosing an upgrade path.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add front dash corner speakers if your system uses them, and consider front-stage tweeters if equipped or if your chosen audio package supports them. | Clarity usually improves most when the front stage is refreshed first, since that is where vocals and detail are heard most often. This approach helps clean up mids and highs without changing the whole system at once. |
| More bass | If the truck has the factory subwoofer, verify how it is integrated before replacing it, then add an aftermarket subwoofer solution that fits your bass goals and system layout. | The listed factory subwoofer may be trim-dependent, so it is smart to confirm what is installed before planning bass upgrades. Adding dedicated low-frequency support gives the system more impact without asking the door speakers to do all the work. |
| Louder sound | Use properly matched speakers and amplifier integration to improve volume and reduce distortion, and verify factory amp or premium system integration before adding aftermarket amplifiers. | Higher output works best when the speakers and amplifier are matched correctly. Checking the existing audio package first helps avoid integration problems and makes it easier to choose the right power setup. |
| Budget improvement | Replace the front door speakers first with same-size replacement speakers and the correct mounting brackets, then move to the rear speakers later if needed. | The front doors do the most work in everyday listening, so they usually give the best value for the money. Starting there keeps the upgrade focused and lets you improve sound without replacing every speaker at once. |
| 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 still improving sound quality. It also helps the installation stay tidy and makes it easier to return or service the system later. |
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 2016 GMC Sierra 1500?
The front door speakers are 6 x 9 inch full-range units. Dash corner speakers are 2.5 inch full-range, and rear door speakers are 6.75 inch full-range.
What size are the rear speakers in a 2016 GMC Sierra 1500?
Rear door speakers are 6.75 inch full-range on this model. Speaker equipment can vary by trim, so it is smart to verify the exact setup before ordering parts.
Does the 2016 GMC Sierra 1500 have a factory subwoofer?
A 6.5 inch front center console subwoofer is listed if equipped. It may be trim-dependent, so check the audio package before assuming your truck has one.
Can I replace the speakers without replacing the radio?
Yes, speaker upgrades can be done without changing the radio in many cases. The factory radio setup varies by trim, so confirm your system before choosing new speakers.
Do I need mounting adapters for speaker replacement?
Mounting adapters may be needed depending on the speaker size and location. The factory openings include 6 x 9 inch front doors, 2.5 inch dash corners, and 6.75 inch rear doors.
Does the 2016 GMC Sierra 1500 have a factory amplifier?
Factory amplifier details should be verified by trim and audio package. The data shows an amplifier on some trims, while others list N/A.