Digital Sound System Control Module -J525-, Connector Views, BOSE, ANC, From My 2015

-T18i- (B)

Designation

Noise Reduction Microphone 3 -R287- ⁽¹⁾

Noise Reduction Microphone 4 -R288- ⁽¹⁾

Engine Control Module (ECM) -J623-/Subframe Mount Control Module -J931- ⁽¹⁾

Terminal 31, to 397 Ground Connection 32 in main wiring harness ⁽¹⁾

Noise Reduction Microphone 2 -R286- ⁽¹⁾

Noise Reduction Microphone 1 -R285- ⁽¹⁾

-T38- (A)

Designation

Terminal 30, from Fuse Carrier 4 -ST4- in fuse panel-F -SF-

Terminal 31, to 50 Ground Connection (in left luggage compartment)⁽²⁾
729 Ground connection on left rear wheel housing⁽³⁾

Right Rear Bass Speaker -R17-/Right Rear Treble Speaker -R16-

Left Front Bass Speaker -R21-

Subwoofer -R211-

Left Front Midrange Speaker -R103-

Right Front Midrange Speaker -R104-

Right Front Speaker -R3-

Left Front Speaker -R2-

Right Front Bass Speaker -R23-

Left Rear Bass Speaker -R15-/Left Rear Treble Speaker -R14-

Right Rear Bass Speaker -R17-/Right Rear Treble Speaker -R16-

Left Front Bass Speaker -R21-

Subwoofer -R211-

Left Front Midrange Speaker -R103-

Right Front Midrange Speaker -R104-

Right Front Speaker -R3-

Left Front Speaker -R2-

Ringbreak Diagnosis Wire to B444 OBD Connection 1 (in main wiring harness)

Ground-shielding for Interior microphone -R74- in Microphone Unit (in front roof module) -R164-

Inside Microphone -R74- in Microphone Unit (in front roof module) -R164-

Center speaker -R208-

Left effects speaker -R209-

Right effects speaker -R210-

⁽¹⁾	Only models with noise compensation ANC, EP1

⁽²⁾	Only sedan

⁽³⁾	Only Avant