Start with what is installed
Factory System Overview
Base, Alpine and Harman Kardon systems appear across the range. Some amplified-system interfaces do not retain the factory fader. When bypassing an amplifier, match the new amplifier and speaker loads; low-impedance factory speakers should not simply be connected to a replacement receiver intended for 4-ohm speakers. Some vehicles also have active noise cancellation, which must be disabled when adding an amplifier, processor or subwoofer. The factory amplifier is beneath the driver-side cargo floor. On later Harman Kardon systems, disconnected speaker channels may require load resistors when adding an amplifier or line-output converter; the source distinguishes this from simply tapping a connected channel for a mono amplifier.
Inspect before ordering
Record the model year, factory audio package and any previous modifications. Listen to every channel and note faults before taking the vehicle apart. A working baseline makes the final checks meaningful.
Guide coverage
WK2 only, including 2022 Grand Cherokee WK; excludes WL and Grand Cherokee L. Check exact year, radio, premium system and SRT/Trackhawk restrictions.
Planning guide, not a fitment guarantee. Match wiring, impedance, adapters and removal procedures to the actual vehicle. Photos show selected configurations, not every trim or a complete removal sequence.
Radio Upgrade
Conventional radio replacements can require subdash modification. The source also describes vehicle-specific 10.1-inch floating-screen direct-replacement packages that avoid cutting, but their exact compatibility must be checked rather than generalized to every WK2.
Connections and clearance
Make secure insulated connections and leave service length without trapping cables. Check mounting stability, vents, switches and display clearance. A plug that fits physically does not prove amplifier or vehicle-function compatibility.
Test the complete system
Verify reception, source playback, balance, fade and any retained steering-wheel controls. Restore all required dash connections before powering the vehicle for a test, following vehicle safety procedures.
Radio access and integration
Conventional radio replacements can require subdash modification. The source also describes vehicle-specific 10.1-inch floating-screen direct-replacement packages that avoid cutting, but their exact compatibility must be checked rather than generalized to every WK2. Some kits or interfaces exclude SRT and Trackhawk models. The 2011–2013 radio removal uses the surrounding trim and four 7 mm screws. The source distinguishes the base radio mounting from navigation-equipped double-DIN installations, which require subdash work. For 2014 and later, opening the storage door provides access to the center trim; the radio is again held by four 7 mm screws. Relocating the module behind the radio can gain 1.645 inches of clearance. An 8.4-inch factory system needs the appropriate retention interface, not just a mechanical dash adapter.
Before disassembly
Use the instructions for the exact vehicle and selected installation kit. Support removed trim and the receiver, retain fasteners by location, and stop if the wiring or dashboard differs from the documented configuration.
Shop Speaker Sizes
Browse verified collection categories, then confirm the actual installation requirements. These are not vehicle-specific fitment guarantees.
Center dash
Browse by size; verify depth, mounting and electrical compatibility.Speaker Upgrades
Check each mounting location separately. Nominal diameter alone does not establish depth, grille clearance, impedance or a suitable signal from the factory amplifier.
Center dash
Factory: 3½-inch
Replacement planning: Fit-checked 3½-inch
Grille and two 7 mm screws provide access.
Front doors
Factory: 6x9-inch woofers; 1.452-inch tweeters; optional 3½-inch midrange
Replacement planning: Fit-checked 6x9-inch, 6½-inch, 5¼-inch
Smaller woofers need brackets. Tweeters need adapted mounting and wiring.
Rear doors
Factory: 6¾-inch full-range or Harman Kardon woofer with 1.483-inch tweeter
Replacement planning: 6¾-inch, 6½-inch, 5¼-inch
Smaller replacements use brackets and require trimming the upper locating tab; 6¾-inch replacements require four new holes.
Rear pillars
Factory: 2.530-inch speakers
Replacement planning: Fit-checked speakers
Extensive trim removal makes this a useful job to combine with subwoofer access.
Passenger-side rear subwoofer
Factory: 8-inch
Replacement planning: Fit-checked 8-inch
Reuse of the enclosure may require new holes or a custom bracket.
Access and mounting
Identify the speaker layout before pulling trim. Front door-panel removal includes a Phillips screw behind the release-handle cover, a 7mm screw inside the pull cup, the switch panel and retaining clips; support the panel while disconnecting its wiring. The woofer itself is secured by four T20 screws. The tweeters do not have a dedicated replacement bracket or wiring harness in the source, so plan a secure adapted mount. Rear door fit is sensitive to both frame size and the locating tab. Cover the surrounding area before drilling and check behind the panel before making holes. Rear-pillar speakers take much more dismantling than a simple grille swap. Combining their replacement with cargo-area work avoids repeating that trim removal. Test every changed channel before reassembly, including any channels connected through the retained factory amplifier.
Test before closing
Confirm polarity and each channel at a moderate level. Check window travel, latch operation and wiring clearance. Replace damaged clips and secure every panel without pinching its harness.
Tools
Panel tool; Phillips and flat-blade screwdrivers; 7 mm and 10 mm sockets; T20 and T25 Torx drivers; Drill when required; Eye protection
Electrical and restraint safety
Follow the vehicle battery-disconnection and restraint-system precautions. Do not probe airbag wiring. Keep the ignition off during connection work and protect exposed conductors.
Before cutting or drilling
Inspect both sides for wiring, glass, fuel lines and safety components. Stop if clearance cannot be verified. Protect cut edges, wear eye protection and restore seat and restraint hardware correctly.
Bass and Amplifier
The factory subwoofer enclosure is on the passenger side at the rear. Check mounting depth and the new driver’s mounting pattern before choosing to reuse it. The source measures the larger cargo enclosure area at 41 inches wide, 15 inches high and 37/35 inches deep. Remeasure around the actual trim, seats and equipment before building a box. An added subwoofer is also an integration task: verify the signal path, amplifier load and active-noise-cancellation treatment before powering the system. Do not assume a premium speaker upgrade is electrically compatible simply because it fits the factory opening.
Power and protection
Size cable, fusing and grounding for the equipment and run length. Protect the power cable close to its source, following the wiring system requirements. Route cables clear of sharp edges and moving hardware.
Final tuning
Start with conservative gain and crossover settings. Listen for distortion, rattles and missing channels. Check heat, charging-system behavior and unwanted key-off operation before considering the installation finished.
Installation Checklist
Work through the system in stages. Test before replacing trim, then repeat the checks after everything is secured.
- Record the exact vehicle year and audio package.
- Choose whether to retain or bypass the factory amplifier.
- Confirm radio kit, interface and antenna requirements.
- Measure speaker depth, opening and grille clearance.
- Plan safe wire routes, protection and equipment mounting.
- Gather tools and follow the vehicle's safety procedures.
- Label, connect, insulate and secure the wiring.
- Test every speaker channel at a moderate level.
- Check radio sources, phone audio and vehicle controls.
- Set gain and crossovers without audible distortion.
- Secure all trim, seats and safety-related hardware correctly.
- Recheck for rattles, heat and unwanted key-off operation.
Keep a record. Save the equipment models, interface instructions, wiring changes and tuning settings. Clear notes make future service easier and help another installer understand what has changed.
Car audio guides, upgrades and installation planning.
