Skip to content
Ohmic Audio

Factory And OEM Integration

Analog Source, DSP, And Amplifier Interfaces

Use the complete analog-interface contract before selecting an RCA cable, balanced adapter, line driver, differential receiver, line-output converter, transformer, shield termination, or grounding change.

Vehicle Networks And Retained Functions

Use the maintained network architecture before connecting a factory-audio interface, CAN or LIN controller, diagnostic adapter, automotive audio endpoint, or external DSP controller.

Map The Vehicle Before Choosing The Interface

Factory audio can carry music, calls, navigation, chimes, warnings, active noise cancellation, engine-sound management, volume commands, diagnostics, and network state through the same amplifier and loudspeakers. The correct integration point depends on the exact vehicle, trim, radio, amplifier, option code, firmware, and functions that must remain.

Do not start with a wire color. Start with a system map, a retained-function list, and repeatable measurements.

Core Integration Topics

Speaker-Level Input

Handle BTL, differential, class-D, common-mode, voltage, impedance, and safe measurement correctly.

Factory De-Equalization

Separate stable EQ from dynamic processing, delay, all-pass filters, limiting, and missing bandwidth.

Bass Rolloff Restoration

Measure level-dependent low-frequency attenuation and calibrate dynamic restoration within system limits.

ANC And Engine Sound

Separate cancellation, road-noise control, engine harmonics, enhancement, microphones, sensors, and bypass requirements.

Guided Application