GM Genuine Parts 15201406 Rear Side Door Speaker (GM-recommended factory replacement)
Product description
What this speaker is for
If your GM’s rear side door audio has started sounding weak, distorted, or simply “off,” this GM Genuine Parts 15201406 rear side door speaker is aimed at restoring the sound quality of your factory audio system. The idea here is pretty straightforward: swap in a GM-recommended replacement so the speaker matches what the original equipment was designed to do.
On paper, this is less about chasing some new audio experiment and more about getting back to baseline. That usually matters most when you want normal factory performance—without re-engineering your setup.
The essentials: why the “factory replacement” approach helps
This 15201406 speaker is manufactured to GM OE specification with the goal of fit, form, and function. For buyers, that usually translates into fewer headaches during installation compared to generic aftermarket options that may not sit, mount, or perform the same way.
It’s also positioned as a GM-recommended part for GM vehicles that originally used a factory speaker at the rear side door location. If your goal is sound that behaves like the rest of your system, this is the kind of part you look for.
Where it fits on the vehicle (and where you should double-check)
This part is listed as fitting specific GM models and model years, including:

- GMC (’07–’14) Yukon and Sierra series, ’07–’13 Yukon XL 2500 and Sierra 1500
- Chevrolet (’07–’14) Tahoe, ’07–’14 Suburban 1500 and Silverado series, ’07–’13 Suburban 2500 and Silverado 1500, Avalanche
- Cadillac (’07–’14) Escalade series, ’07–’13 Escalade EXT
Still, don’t skip the compatibility check. Even within the same vehicle family, trims and audio setups can vary, and this product listing is specifically framed around factory-style replacement.
What you’ll notice after install (and the limitation to keep in mind)


When a door speaker is failing, the problem often shows up as uneven output—sometimes one side sounds quieter, sometimes the tone gets harsher, and sometimes it just doesn’t feel “right” at higher volume. Replacing a rear side door speaker with a GM OE-spec unit can bring the balance back so your system sounds closer to how it did when everything was new.
That said, if your expectations are “upgrade-level” performance (more bass punch, louder output, or a totally different sound signature), this is not really that kind of product. It’s a restoration part. It’s best considered when you want OEM-like behavior, not when you’re trying to transform the entire audio system.
Key specifications to look at before buying
From the information provided, the most important buying check is the GM part number and the vehicle fitment range listed for 15201406. Also, confirm that you’re replacing the correct location: this is described as a rear side door speaker, not a front speaker or a different door position.
Here’s a practical way to think about it: if only one rear side door sounds off while the rest of the cabin audio behaves normally, replacing just the affected speaker is a sensible first move.

Who it makes sense for
It makes sense if you:
- Own a compatible GM vehicle and want a GM OE-spec replacement speaker for the rear side door
- Prefer restoring factory sound quality rather than experimenting with new audio components
- Want a part designed for fit and function to OEM manufacturing standards
It may not be the best match if you’re trying to build a major audio upgrade. In that case, you’d typically expect to evaluate options beyond an OE-style replacement approach.
Final verdict
Should you buy it?

Worth considering if your priority is restoring your GM’s factory audio quality with a GM OE-spec rear side door speaker, especially when the listing matches your exact vehicle and you’re replacing the correct speaker location.
You may want to skip it if you don’t have confidence in compatibility (or if you’re planning a broader audio upgrade rather than a restoration). Also, if your sound issues are caused by wiring, amplification, or head unit settings, replacing only the speaker might not fully solve the problem.

Quick FAQ
Q: Is this meant for audio restoration or an upgrade?
Based on its GM OE-spec, factory replacement positioning, it’s aimed at restoration—bringing sound quality back toward how the original factory speaker was designed to perform.
Q: What matters most before I order?
The fitment to your specific GM vehicle and making sure you’re replacing the correct rear side door speaker location.
Q: Can I replace just one speaker?
It can be a logical choice if one rear side door speaker is the problem and the rest of the audio system is behaving normally—but compatibility still needs to match.
Q: Will it change the whole sound character?
Not really by design. This is focused on matching OEM specification rather than changing the audio profile dramatically.
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