Mazda MX 5 Bose Amplifier Repairs

International postal repair service for Bose car amplifiers

This 7 Channel DSP controlled amplifier can be found in all variants of Mazda MX5 from 2009 onwards. It has a maximum power output of 240 Watts – located behind the drivers seat – behind a plastic cover , it’s easily removed.

It’s worth noting that the Bluetooth kit runs through the amplifier – so the amplifier is ‘on’ the minute the door is opened regardless of the radio being on/off.

Coding

No VIN coding – variables set by model number.

What Fails and Why

After spending many hours reverse engineering this unit we have built up an extensive knowledge base on the circuit. We have improved the design and have developed a ‘repair/reliability’ kit which we fit on all units. This enables us to confidently supply a lifetime warranty on all repairs.There are no known faults with the headunit – all issues are with the amplifier.

Common symptoms are ;

No Sound
Machine gun noise through speakers
Loud white noise
Random loud noise when door is opened

The MAZDA MX 5 BOSE AMPLIFIER

Models We Repair

NH61 66 920 or NH6166920
NH60 66 920 or NH6066920
NH58 66 920 or NH5866920
NH59 66 920 or NH5966920
NH61 66 D20 or NH6166D20

Repair process

All units are tested first to ensure faults exist – after which the unit is stripped and rebuilt.

After a final reprogram/check and data errors cleared, the unit is sealed to protect the components from moisture.

We currently have a 100% success rate with these units – so long as they haven’t been water damaged or tampered with.

Our repair work seems to reach everywhere – the latest Haynes manual for Mazda features one of our repaired units in their ‘strip down’ guide

We can also …

reprogram any unit to ‘be another’ i.e.. convert a Mazda 3 to a Mazda 6 – any variant , any model.

What we can’t repair

Heavily water damaged units
Units that have had poor repair attempts

How to remove your amplifier

Unit is situated behind the drivers seat , behind a plastic flap – it’s secured by 3x 10mm nuts onto a frame which is easily removed. Three wiring loom plugs will have to be unplugged – there is a clip which secures them to the amplifier.