Ákos Égő’s latest update combines firmware 3.0.7, a production change affecting the module’s main connector, continued work on vintage Clarion and Kenwood systems, and early compatibility tests in selected Alfa Romeo and PSA vehicles.
Since SaabPlanet first presented the BT Changer and the Hungarian team behind it in 2023, the module has developed far beyond its original role as a discreet Bluetooth interface for Saab factory audio systems.
In his latest project update, Ákos Égő confirmed that BT Changer has completed an important firmware correction, caught up with orders accumulated during the team’s vacation, and started replacing the main connector used on newly produced modules.
The connector transition may cause occasional shipping delays over the coming weeks, but Ákos also used the announcement to confirm that several new Saab-related products and functions are under development.
Firmware 3.0.7 Resolves a CAN Communication Problem
The most immediate update for existing owners is the release of firmware 3.0.7.
After version 3.0.0 arrived in May 2026, several users reported that their modules would occasionally lose communication with the factory head unit or freeze during operation. The behavior proved difficult to reproduce under controlled conditions, and several smaller software corrections did not completely eliminate it.
According to BT Changer’s official explanation of the firmware 3.0.7 fix, a customer video eventually helped the developers identify the cause. A manufacturer had changed the internal firmware of one component used inside the BT Changer, and that change affected the module’s CAN-bus communication.
BT Changer modified its own software to compensate for the altered component behavior. The official changelog lists two corrections:
- CAN communication repair
- Fixes for anomalies affecting newer mobile devices
BT Changer recommends version 3.0.7 particularly for owners who have experienced freezing or communication loss.
Owners of Earlier Hardware Must Check Their Version
The firmware is not compatible with every BT Changer generation.
The official firmware download page states that version 3.0.7 is intended only for V5, V6, V7, V8, and V9 hardware. Installing it on an older V2, V3, or V4 module can block the device.
That does not mean earlier modules must automatically be replaced. BT Changer’s documentation specifically notes that an existing unit does not require constant updating when it works correctly and already provides the functions its owner needs.
The downloaded .fw file should also not be opened as a computer program. Firmware is first saved to a phone and then uploaded through the module’s Wi-Fi administration interface. After a major update, the head-unit and display settings may need to be configured again and the phone paired once more. The complete procedure is available in the BT Changer FAQ.
Why BT Changer Is Changing the Main Connector
The photograph accompanying Ákos’s announcement compares the original recessed connector with the new projecting connector now entering production.
BT Changer has not described this as a mandatory upgrade for existing customers. When an owner asked whether a year-old module had become outdated, Ákos explained that a correctly functioning unit does not need to be changed.
The practical difference is broader head-unit support. According to his reply, the updated arrangement is intended to accommodate several types of audio equipment, including vintage Clarion and Kenwood systems.
This is consistent with BT Changer’s wider development strategy. The company uses common electronic hardware that is adapted to different Saab audio systems through software settings and model-specific wiring harnesses. Its current compatibility information includes factory units used across the Saab 900, 9000, NG900, both generations of the 9-3, and several 9-5 audio configurations.
Because the connector change affects modules, harnesses, component stocks, assembly, and outgoing orders at the same time, Ákos warned that some deliveries may be delayed during the transition.
Clarion Development Is Moving Outside the Saab Range
The new announcement also confirms that BT Changer’s Clarion work is beginning to reach other manufacturers.
Ákos reported that the module is already working in some Alfa Romeo and PSA applications, with owners helping the team through testing and feedback. No complete list of compatible models, years, radios, or part numbers has yet been published, so this should not be interpreted as universal support for every Alfa Romeo, Peugeot, or Citroën fitted with a Clarion unit.
It does, however, show why the new connector matters. BT Changer is increasingly being developed around families of factory head units and communication systems, rather than around one Saab model or one CD-changer socket.
Kenwood support is progressing along similar lines. BT Changer has already adapted its software for certain vintage Kenwood head units using a special cable and 13-pin DIN connection. However, the early Saab 9-5 navigation system remains more complicated because its main audio hardware is located in the trunk and still requires further integration with the car’s original controls.
Several Saab Projects Remain Under Development
Ákos also confirmed that several new and unusual Saab products and features are currently being developed, although the team is not yet ready to disclose them.
One commenter asked specifically about the proposed replacement for the Saab Direct Ignition Cassette. BT Changer replied that progress has been made, but that it remains a large and difficult development with new complications repeatedly appearing.
That response should be treated as a development update rather than a product announcement. No release date, price, final specification, or supported Saab application has been confirmed.
Existing BT Changer Owners Do Not Need to Rush
For most current users, the message is straightforward.
A stable older BT Changer does not need to be replaced solely because the connector has changed. Likewise, firmware 3.0.7 is primarily relevant to compatible V5–V9 modules affected by freezing, CAN communication loss, or problems involving newer mobile devices.
For new buyers, the revised connector represents something broader: BT Changer is preparing one module platform for an increasing number of Saab, Clarion, and Kenwood audio systems, while cautiously beginning work outside the Saab range.
That is the real significance of the comparison photograph. The visible change is a connector, but the reason behind it is a product whose compatibility range continues to widen.
