2017-2020 INFINITI Q60 Bose Amplifier: Diagnosing No Sound and Replacement Guide
Learn to diagnose common audio failures, verify the correct part number, and understand why a replacement amplifier for your Q60's Bose sound system does not require programming.
- This amplifier is ONLY for 2017-2020 Q60 models with the Bose premium audio system; it will not work in cars with the standard stereo.
- A replacement amplifier, whether new or used, is PLUG-AND-PLAY and does not require any dealer programming or software flashing.
- Part numbers 28061-5CA2A, 28061-5CA2D, and 28061-5CB2A are all interchangeable, with 5CB2A being the latest revision.
- Before replacing the amplifier, check for simple fixes like a weak battery or a software glitch that could be causing similar audio problems.
Symptoms of a Failing Amplifier
When the Bose amplifier in a 2017-2020 Q60 begins to fail, the symptoms are usually impossible to ignore. Because it controls the entire sound system, any issue with it will affect all audio sources, including radio, Bluetooth, and navigation prompts.
- Complete Loss of Sound: The most common symptom is a sudden and total silence from all speakers. The radio or media player on the screen may appear to be working, but no audio is produced.
- Intermittent Audio: The sound may cut in and out randomly while driving. This can happen shortly after starting the car or after it has been running for a while.
- Popping or Crackling Noises: Loud pops, static, or crackling sounds may come from the speakers, either intermittently or constantly.
- Sound from Only One Side: Failure of one or more internal channels can cause audio to play from only the left or right side of the vehicle.
Pro Tip: Before blaming the amplifier, check your vehicle's battery. Forum users have reported that a weak, failing, or incorrectly sized battery can cause strange electrical issues, including the audio cutting out. If your battery is over four years old, have it tested to rule it out as the cause.
Is it the Amplifier or a Software Glitch?
Not all audio problems point to a bad amplifier. The Q60's infotainment system can also suffer from software issues. Infiniti has released a Technical Service Bulletin (TSB), ITB23-010A, for a wide range of models including the 2017-2022 Q60, to address software-related infotainment issues like system stability and other bugs. If your screen is freezing or rebooting in addition to audio problems, the issue may lie with the AV Control Unit (head unit) software rather than the amplifier. A dealer or qualified shop can check if this TSB applies and perform the update.
Known Issues, TSBs, and Recalls
There are no active recalls from the National Highway Traffic Safety Administration (NHTSA) for the audio amplifier on the 2017 INFINITI Q60.
A notable recall for the 2017 Q60 with the 2.0L engine is NHTSA Campaign Number 17V476000. This recall addresses faulty software in the Fuel Pump Control Module (FPCM) that could cause the engine to stall. This issue is unrelated to the audio system but is an important safety check for owners of affected vehicles.
Compatibility Warning: This amplifier is exclusively for models equipped with the Bose® Performance Series audio system. It will not work in a vehicle with the standard, non-Bose audio system. The connectors and system architecture are completely different.
Buying a Used 2017-2020 Q60 Amplifier
Buying a used OEM amplifier is a cost-effective way to restore your sound system. Because these units are plug-and-play, a used part offers significant savings over a new one without the need for expensive programming. Here’s what to look for:
- Verify the Part Number: The most critical step is to match the part number. The original part number for the 2017 Q60 is 28061-5CA2A. This has been superseded by newer, interchangeable revisions 28061-5CA2D and 28061-5CB2A. Any of these three part numbers will work. It is generally best to get the newest revision possible (28061-5CB2A).
- Inspect the Connectors: Before purchasing, carefully examine photos of the unit's electrical connectors. Look for any signs of corrosion, bent pins, or damage to the plastic housings. A damaged connector is a major red flag.
- Source from a Reputable Seller: Purchase from an automotive recycler that tests their electronic components and offers a warranty. This protects you in case you receive a defective unit.
- Why Used OEM is a Good Choice: For this specific part, a used OEM amplifier is often the best value. There are no direct-fit aftermarket amplifiers available; installing one would require custom wiring and bypassing the factory system. A used OEM unit ensures perfect integration and sound quality as designed by Bose and Infiniti.
Programming and Installation
No Programming Required
A replacement Bose audio amplifier for the 2017-2020 INFINITI Q60 is plug-and-play. It does not need to be programmed, flashed, or coded to the vehicle's VIN. You can swap a used or new unit directly into your car without a trip to the dealer. This is confirmed by service information and the practices of used parts sellers. A service campaign for a different Infiniti model even warns technicians *not* to program a replacement amplifier, indicating they are designed for direct installation.
Replacement Overview
The amplifier is located in the trunk, mounted in the passenger-side rear quarter panel, behind the trunk liner. Replacement is straightforward for a DIYer with basic tools.
- Disconnect the vehicle's battery.
- Remove the trunk floor covering and spare tire access panel.
- Unclip and pull back the trunk liner on the right (passenger) side to expose the amplifier and its metal bracket.
- Disconnect the two large electrical connectors from the amplifier. There are release tabs in the center of each connector that need to be pressed.
- Unbolt the amplifier bracket from the vehicle body. These are typically 10mm or 12mm bolts.
- Remove the old amplifier from the bracket and install the replacement.
- Re-install everything in the reverse order of removal.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $1,800 - $2,400 |
| Used OEM | $150 - $350 |
| New Aftermarket | Not Available (custom installation required) |
| Shop Labor | $120 - $270 |
Frequently Asked Questions (FAQ)
Does a replacement 2017 Q60 amplifier need to be programmed?
No. The Bose amplifier for the 2017-2020 Q60 is a plug-and-play part. It does not require any programming or dealer visit after installation.
Where is the audio amplifier located?
The amplifier is located in the trunk, behind the trim panel in the right (passenger-side) rear quarter panel.
Can I use an amplifier from a non-Bose Q60?
No. The standard audio system and the Bose premium system use completely different amplifiers and wiring. You must use an amplifier from a Bose-equipped vehicle.
What causes the amplifier to fail?
While causes vary, failures in car audio amplifiers are often due to heat cycles causing internal solder joints to crack over time, or failure of internal electronic components like capacitors. Water intrusion is another common cause for amplifiers located in trunks, so it is wise to check for any signs of water leaks in the trunk area when replacing the part.
Technical Specifications
OEM Part Numbers: 28061-5CA2A 28061-5CA2D 28061-5CB2A
11-channel digital amplifier with integrated Bose DSP (Digital Signal Processing)
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- INFINITI Q60: