1999 Jeep Grand Cherokee Speaker Sizes and Audio System Guide
1999 Jeep Grand Cherokee Speaker Sizes and Audio System Guide
This page covers the factory speaker locations, original sizes, and upgrade notes for the 1999 Jeep Grand Cherokee. Equipment can vary by trim, body style, and audio package, so speaker count and factory audio details should be verified before ordering parts. Some models also include tweeters if equipped, and factory amplifier details should be checked by trim and audio package.
Data verified by Nick Marchenko, PhD
Speaker Size Chart – 1999 Jeep Grand Cherokee
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 | Tweeter | 2.5 inch | if equipped |
| Rear Door | Full-Range | 6.75 inch |
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.
Recommended Speakers for the 1999 Jeep Grand Cherokee
Selected aftermarket speakers that match the factory sizes for this vehicle. Always verify mounting depth, connector type, and audio package before ordering.
6.75" Speakers
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Speaker Count by Trim – 1999 Jeep Grand Cherokee
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 |
|---|---|---|---|---|
| Limited 4dr 4x2 | 8 | std | – | – |
| Limited 4dr 4x4 | 8 | std | – | – |
| Laredo 4dr 4x2 | 6 | – | – | – |
| Laredo 4dr 4x4 | 6 | – | – | – |
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 1999 Jeep Grand Cherokee?
Aftermarket fitment should start with the factory speaker locations listed for this 1999 Jeep Grand Cherokee, but diameter alone is not enough. Check mounting depth, bracket fit, connector type, and whether the vehicle has a factory-amplified audio system, since amplifier details should be verified by trim and audio package. The listed speaker sizes give a strong starting point, but the final match depends on the exact location and equipment level. Selected audio systems may also include tweeters 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 has the dash corner tweeter location, a 2.5 inch tweeter may be present if equipped.
- If your vehicle is one of the trims with an 8-speaker setup, verify the factory amplifier and speaker layout before ordering replacements.
Check Before Buying
- Confirm the speaker location first, since the front door, rear door, and dash corner openings use different sizes.
- Measure mounting depth and check the factory bracket or adapter style before buying new speakers.
- Verify connector type and wiring condition so the replacement matches the vehicle’s harness.
- Check trim and audio package details if the vehicle has a premium or amplified system, because equipment can vary.
- If you are replacing tweeters, make sure the vehicle actually has the dash corner location equipped.
Installation Notes
On the 1999 Jeep Grand Cherokee, speaker replacement usually starts with careful panel removal at the front and rear doors, then checking the factory wiring before disconnecting anything. The front door openings use 6 x 9 inch full-range speakers, while the rear doors use 6.75 inch full-range speakers. Dash corner tweeters are listed as optional, so verify whether your vehicle has them before ordering parts. Speaker depth should be checked closely, especially in the doors, because clearance can vary with the factory basket and grille shape. Mounting adapters may be needed to adapt aftermarket speakers to the factory openings, and harness adapters can help keep the wiring clean and reversible. If your vehicle has the factory subwoofer, plan for additional integration steps and verify the audio package before starting. After installation, test balance, fade, and polarity before reinstalling all trim panels.
Moderate difficulty, since trim removal, wiring verification, and fitment checks are important on this vehicle.
Common Mistakes When Replacing Speakers
When shopping for audio upgrades on this 1999 Jeep Grand Cherokee, the biggest errors usually come from assuming every vehicle is wired the same and skipping a few basic checks before ordering parts.
- 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 and factory amplifier details can change by trim and should be verified before choosing parts.
- Ordering speakers without confirming mounting depth, because the listed sizes still need enough clearance behind the panel and magnet.
- Overlooking connector and wiring style, which can lead to mismatched adapters or extra work during installation.
- Assuming tweeters are present on every vehicle, when the dash corner tweeters are only included if equipped.
- Skipping a test fit and sound check before reassembly, which makes it harder to catch fitment or wiring issues while access is still open.
Generation & Model Family
The 1999 Jeep Grand Cherokee belongs to the Second Generation (WJ) (1999–2004) 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 1999 Jeep Grand Cherokee uses a speaker layout that can vary by trim and audio package, so the best upgrade plan depends on what is already installed. A smart approach starts with the front stage, then adds bass or power only where it will make the biggest difference. Factory amplifier details should be verified by trim and audio package before planning upgrades.
| Goal | Best Upgrade Path | Why |
|---|---|---|
| Better clarity | Upgrade the front door speakers first, then add dash corner tweeters if equipped to sharpen vocals and high-frequency detail. | The front stage does the most work for everyday listening, and improving it usually gives the cleanest jump in clarity. If tweeters are present, matching them with better front speakers can improve mids and highs without changing the rest of the system right away. |
| More bass | Add an aftermarket subwoofer to complement the factory speakers and fill in low-end output. | This model does not list a factory subwoofer, so adding dedicated bass is the most effective way to increase low-frequency impact. A subwoofer can handle the deep notes that door speakers are not built to reproduce well. |
| 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. | Higher output only helps if the system is matched correctly, because mismatched gear can sound harsh or distort early. Checking the existing audio package first helps avoid integration problems and makes it easier to choose the right amplifier path. |
| Budget improvement | Replace the most-used front door speakers first with same-size replacement speakers with correct mounting brackets. | Front speakers usually deliver the biggest audible improvement for the money, especially when the goal is a simple refresh. Starting there gives a noticeable upgrade without needing to replace the entire system 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 interior looking original while still improving sound. It also helps maintain the factory wiring layout and reduces the need for visible modifications. |
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 1999 Jeep Grand Cherokee?
The front door speakers are 6 x 9 inch full-range units. Dash corner tweeters are 2.5 inch if equipped.
What size are the rear door speakers?
The rear door speakers are 6.75 inch full-range speakers.
Does the 1999 Jeep Grand Cherokee have a factory subwoofer?
A factory subwoofer is not listed for this model year. If your vehicle has one, it would depend on the audio package or trim.
Do I need mounting adapters to replace the speakers?
Mounting adapters may be needed depending on the replacement speaker depth, basket shape, and the vehicle’s original openings. Check the speaker location before ordering.
Can I replace the speakers without replacing the radio?
Yes, speaker replacement can be done without changing the radio. The factory radio can stay in place if you are only upgrading the speakers.
Does the factory amplifier vary by trim?
Yes. Factory amplifier details should be verified by trim and audio package. The Limited trims list an amplifier as standard, while the Laredo trims do not list one.