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What size speakers are in a 1994 S10?

In a typical 1994 S-10 pickup, the stock front-door speakers are 4x6 inches, and rear speakers (present on extended-cab models) are commonly 6x9 inches. Exact sizes can vary by cab type and factory option, so check your specific truck to confirm.


Cab configurations and standard speaker sizes


The 1994 S-10 came in regular cab and extended cab configurations. The regular cab typically has no rear speakers, while the extended cab often includes rear deck speakers. Here are the sizes you would expect from factory installations, depending on configuration.



  • Regular cab: front doors use 4x6 inch speakers; no rear speakers in the standard cargo area.

  • Extended cab: front doors use 4x6 inch speakers; rear deck behind the seats commonly uses 6x9 inch speakers (some late builds used smaller rear speakers, but 6x9 is standard for many extended-cab models).


These sizes reflect common factory configurations from the era. If your truck has a different option package (like a cassette/CD radio or a subwoofer), the speaker sizes can differ slightly or additional speakers may be present.


How to verify the exact size on your truck


To confirm the speaker sizes for your specific vehicle, use one of these verification methods before buying replacements.



  1. Inspect the factory speakers: remove the grille or door panel and read the size stamped or labeled on the speaker itself (for example, 4x6, 6x9, or 5.25).

  2. Measure mounting dimensions: for a rectangular 4x6, measure the mounting hole distance; for a 6x9, measure the larger rectangular area.

  3. Check the vehicle’s original equipment list or service manual: look up the audio system configuration for your VIN or trim level.


Once you verify the exact sizes, you can choose appropriate aftermarket replacements or mounting adapters if you plan to upgrade.


Common aftermarket swap considerations


Upgrading in a 1994 S-10 is generally straightforward for front doors, but rear speakers in extended cabs may require additional wiring or adapters. Consider the following.



  • Front door swaps: 4x6 inch speakers are widely available; you may need plastic adapter brackets to maintain proper fit and grill clearance.

  • Rear deck swaps (extended cab): 6x9 inch speakers are common; you may need spacers or specialized housings to avoid contact with the back of the seat or window.

  • Power handling and head unit compatibility: ensure the new speakers’ RMS power rating matches or exceeds the head unit’s capabilities to prevent distortion.


In all cases, verify measurements for your exact build, as mid-year changes or option packages can alter the standard sizes.


Summary


For a typical 1994 S-10, expect 4x6 inch front-door speakers. Extended-cab models often add 6x9 inch rear speakers on the rear deck, while regular cabs usually have no rear speakers. Always verify with the door panels removed or consult the vehicle’s manual or VIN-specific documentation to confirm exact sizes before purchasing replacements. Upgrading is common and can greatly improve sound with the right adapters and installation.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.