Start with what is installed
Factory System Overview
Systems range from a basic four-speaker installation to a premium nine-speaker Alpine package. Factory options can include UConnect, satellite radio, navigation, hands-free calling and a separate subwoofer amplifier. Receiver replacement can remove those functions unless the new installation specifically replaces or supports them. Many stock speakers are low-impedance designs, so a generic 4-ohm replacement may reduce output on the retained factory amplification.
Planning guide, not a fitment guarantee. Match all wiring, mounting dimensions, impedance, adapters and removal procedures to the exact vehicle. Photographs show selected configurations rather than every available system.
Radio Upgrade
Compatible single-DIN and double-DIN receivers can be installed with the appropriate kit and wiring solution. Removal details depend on the vehicle and factory receiver. Inspect the exact dash before selecting hardware rather than assuming every Durango and Aspen uses the same radio mounting arrangement. A compatible steering-wheel-control interface can preserve supported wheel buttons, but that capability must be checked against both the interface and the new receiver.
Define the retained functions
Write down which factory functions need to remain: steering-wheel buttons, hands-free calling, satellite radio, navigation and the premium subwoofer. A new receiver does not automatically preserve the old accessories or their subscriptions. Resolve this list before the dash is taken apart.
Prepare and test
Remove any discs from the factory changer before disconnecting power. Protect the surrounding trim and organize the mounting screws. After the new radio is wired, check every speaker, the amplifier turn-on behavior and any retained controls before closing the dash.
Factory Speaker Locations & Sizes
Use these collection links to compare size categories, then verify the specific speaker, bracket, depth and wiring for your installation. A matching size label alone does not establish fit.
Front doors • 6.5-inch alternatives
Shop 6.5-inch alternativesFactory size is 6.75 inches. Smaller replacements require the correct mounting bracket; check depth and impedance.
Front doors • 5.25-inch alternatives
Shop 5.25-inch alternativesAn adapter-supported alternative to the factory 6.75-inch speaker, not a direct-fit promise.
Rear doors • 6.5-inch alternatives
Shop 6.5-inch alternativesFactory size is 6.75 inches. Smaller replacements require the correct mounting bracket; check depth and impedance.
Rear doors • 5.25-inch alternatives
Shop 5.25-inch alternativesAn adapter-supported alternative to the factory 6.75-inch speaker, not a direct-fit promise.
Premium rear-door tweeters • Tweeters
Shop TweetersPresent on upper-level systems; confirm mounting dimensions, which are not specified in the source.
Left cargo subwoofer • 8-inch shallow subwoofers
Shop 8-inch shallow subwoofersLow-impedance dual-voice-coil factory unit. Confirm shallow fit, coil wiring and amplifier load; new holes required.
Corner dash access
The 3.5-inch corner speakers sit below the dash trim/grille panel. Pillar trim must be handled first. The passenger-side trim uses concealed screws, while the driver-side arrangement includes a retaining strap. Preserve these attachments rather than pulling the panel free against a restraint.
Front and rear doors
Both rows use 6.75-inch woofers, with 5.25/6.5-inch bracket-mounted alternatives. Rear switch trim releases from the rear and inside edges, not the front edge. Disconnect the door-release linkage carefully. Before refitting either panel, check window travel and confirm that lock and release mechanisms work normally.
Premium subwoofer
The low-impedance 8-inch dual-voice-coil sub sits behind the left cargo-side panel. Its six-hole mounting pattern is not a universal aftermarket pattern. Replacement requires new holes and considerable panel removal. A shallow 2-ohm candidate is only a starting point: verify actual coil configuration, final load, enclosure depth and screw clearance.
Tools & Preparation
Radio work uses a panel tool, Phillips screwdriver and 7 mm socket with ratchet and extension. Dash access adds a 10 mm socket and flat-blade screwdriver. Door work uses a T20 driver. Cargo-subwoofer access addsT 25, T40 andT 50 drivers. Any drilling requires eye protection and a clear view of the material and wiring behind the mounting surface.
Use the vehicle-specific removal instructions and appropriate electrical safety procedure. Keep fasteners organized, protect exposed trim and check wiring or moving parts behind any new mounting hole.
Adding Bass
With the seats up, the measured cargo enclosure space is about 47 inches wide, 13 inches high and 17/10 inches deep along the differing surfaces. Measure the actual vehicle and seat position before designing a box. A compact powered enclosure is an alternative to dismantling the large cargo-side trim. Secure the enclosure and preserve access to the seats and everyday cargo rather than using every available inch.
Installation Checklist
- Use the correct Durango or Aspen year range.
- Identify the factory amplifier and speaker package.
- Confirm replacement-speaker impedance.
- Retain supported wheel controls with a compatible interface.
- Do not pry rear window-switch trim from its front edge.
- Check windows, locks, fading and subwoofer operation before reassembly.
Reference photographs are from the supplied Crutchfield vehicle guide. This article is an original installation-planning summary, not a complete service manual.
