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2013–2017 Honda Accord sedan Car Audio Upgrade Guide

Paul Galanos |

Vehicle audio guide

Honda Accord sedan

The sedan’s factory audio equipment and powertrain both matter to the upgrade plan. Check the speaker package, radio screen and whether the car is a Hybrid. In particular, the researched 2016–2017 seven-inch LCD receiver is not recommended for replacement, even though other receiver configurations have an aftermarket installation path.

2013–2017Equipment varies by year, trim and previous modifications.

Honda Accord sedan exterior Photo: Crutchfield.

Start with what is installed

Factory System Overview

Four-, six- and seven-speaker systems were offered in the researched range. The seven-speaker arrangement adds a rear-deck subwoofer; the six- and seven-speaker systems also use separate front tweeters. Some later factory equipment includes Apple CarPlay and Android Auto. Hybrid cars require additional electrical caution. The supplied research calls for multimeter testing rather than a test light and warns against audio systems exceeding 30 amps or 350 watts RMS. Have a hybrid-qualified installer verify the electrical design rather than treating those figures as permission to add any combination of equipment.

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

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

On eligible receiver versions, the replacement kit must account for the separate upper display and its vehicle and camera functions. Factory USB, AUX, satellite radio and navigation may not remain usable after the original receiver is removed, so confirm each feature with the chosen interface.

Accord sedan factory receiver
Accord sedan factory receiver Crutchfield Research Photo

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

On eligible receiver versions, the replacement kit must account for the separate upper display and its vehicle and camera functions. Factory USB, AUX, satellite radio and navigation may not remain usable after the original receiver is removed, so confirm each feature with the chosen interface. The work involves dash and console trim followed by the receiver fasteners. Keep the original upper screen and its wiring protected during access. For the 2016–2017 seven-inch LCD configuration, retain the original receiver and investigate suitable speaker and amplifier integration instead. Steering-wheel controls require an interface selected for the exact radio and car.

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.

Speaker Upgrades

Confirm which factory system is installed before using the locations below. A nominal diameter alone does not establish basket clearance, mounting pattern or electrical compatibility.

Accord sedan door speaker removal
Accord sedan door speaker removal Crutchfield Research Photo

Front sail-panel tweeters, six- and seven-speaker systems

Factory: Factory tweeter assemblies

Replacement planning: Tweeters, custom fit

No dedicated replacement mounting bracket or wiring harness is identified. Confirm physical fit and make secure insulated connections.

Front doors

Factory: Factory door woofers; verify dimensions

Replacement planning: Vehicle-verified door speakers

Inspect the factory mounting and replacement basket. The plastic ring behind the panel grille may need trimming for clearance.

Rear deck

Factory: 6¾-inch

Replacement planning: 6¾-inch, verify fit

Rear-seat, bolster, pillar and deck-trim access is required. Protect the brake-light harness and seat-belt routing.

Rear-deck subwoofer, seven-speaker system

Factory: 8-inch

Replacement planning: Subwoofer, custom fabrication may be required

The tapered factory basket uses a smaller opening than many aftermarket eight-inch drivers. Metal enlargement and a custom mount may be needed.

Access and mounting

Rear-deck access is a larger job than the visible grilles suggest. The source describes a rear-seat-bottom fastener, side bolsters and pillar trim before the deck panel can be removed. Keep the high-mounted brake-light connection and all seat belts correctly routed during reassembly. The front-door work is more direct, but the panel must still be checked against the installed replacement speaker so that the grille ring does not contact it. Treat tweeter mounting as a separate task from fitting the woofer. Once speakers are connected, verify every channel and restored vehicle function before reinstalling the last trim pieces.

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 screwdriver; Small flat-blade screwdriver; 8mm and 10mm sockets; Ratchet and extension

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 optional factory subwoofer should be evaluated by its actual cutout and basket shape, not its eight-inch label. The source describes replacements that require a larger steel opening, mounting fabrication and panel modification; get a professional assessment before committing to that route. Trunk-enclosure planning differs sharply for the Hybrid. The documented conventional sedan measured roughly 46 inches wide by 16 inches high with 34/44-inch depths; the Hybrid example measured about 44 inches wide by 19 inches high with 22-inch depths. Measure your own car and preserve required access before selecting a box.

Accord sedan rear-deck speaker access
Accord sedan rear-deck speaker access Crutchfield Research Photo

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.

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