Audison APBMW ReAMP 2 Plug & Play T-Harness AP F8.9 bit for BMW with RAM Module

The Audison APBMW ReAMP 2 is a Plug & Play T-harness designed to install an Audison Prima AP F8.9 bit processor in BMW vehicles equipped with a RAM module, connecting via the OEM amplifier's 42-pin connector. It supports Standard and Hi-Fi BMW sound systems, including all iDrive 7 vehicles, without cutting factory wiring.

Using an Audison Forza AF bit amplifier instead? See the AFBMW ReAMP 3.

Key specifications

• Compatible vehicles: BMW with RAM module (all iDrive 7), Standard and Hi-Fi sound systems
• Compatible amplifier: Audison Prima AP F8.9 bit
• OEM connection: 42-pin multipolar connector
• Signals carried: front mid/high, rear mid/high, underseat low-pass
• Outputs: routable to all 7 OEM channels; bridging possible
• Centre speaker: deleted by default; USS1 load device built in
• RAM module: must be retained in the vehicle

APBMW ReAMP 2: Plug & Play T-Harness for Audison AP F on BMW

The APBMW ReAMP 2 provides a clean, cut-free installation of an Audison AP F series processor in BMW vehicles fitted with a RAM module. It is compatible with BMW 676 Standard and Hi-Fi sound systems. All iDrive 7-equipped vehicles include a RAM module regardless of audio package. The OEM seven-channel amplifier connects via a 42-pin multipolar connector.

The harness extracts the front mid/high, rear mid/high and underseat low-pass signals and makes those speaker leads available to connect directly to your amplifier. The outputs terminate in an input connector for the Prima-range AP F8.9 bit processor, with speaker leads terminated in round male disconnects. The RAM module must remain in the vehicle. The mono centre speaker used in the 676 Hi-Fi system is deleted by default to protect stereo performance, and a USS1 load device is built into the harness to simulate its presence.

Notes

• Compatibility is with RAM module-equipped 676 Hi-Fi audio packages and the AP F8.9 bit amplifier only. Use with other products may require modifications and additional connections.
• 676 systems use 2Ω woofers. Do not bridge two channels into a 2Ω load — this may cause protection shutdown or amplifier damage. To use bridged channels, replace OEM 2Ω woofers with Audison APBMW S8-4 4Ω woofers and confirm correct bridge wiring.
• Use input configuration #6 from the manual (2-way front rear). This is essential to correctly route the input signal to the bit processor section.
• Centre speaker: if a centre speaker is required, the speaker leads are present in the harness. The input signal wires can be modified and used; the load device should be removed if doing so.
• APBMW ReAMP 1 and APBMW ReAMP 2 use identical connectors but have different pinouts. They are not interchangeable — confirm the correct harness before installation.