Rear-Shelf 4×6-to-6.5-Inch Speaker Adapter

ABS · PETG1 FILECC-BYInterior

PART RECORDREF 1075

PART: Rear-Shelf 4×6-to-6.5-Inch Speaker Adapter
OEM: —
FITS: 3 Series E21

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PART ID · BIMMER-3D / 1075QTY 1 · STLHANDLE · NO SUPPORTS

Field photographs

2 PLATES

PLATE 01 / 02No caption recorded

Build sheet

MAN-1075

[01]4x6_to_6.5_speaker_adapter_bmw_v5.stl4x6_to_6.5_speaker_adapter_bmw_v5.stl.STL
[02]Bounding box165.100 × 165.100 × 26.988 mm
[03]Volume146,154.643 mm³

Field notes

BY MARTIN CHECK (CWF95GSX)

Adapter for fitting most 6.5-inch speakers at the factory 4×6 rear-shelf positions of a 1981 BMW E21 320i without cutting new holes. The creator reports successful physical fit and sound. Check magnet depth, shelf clearance, fastener security and wiring before installation.

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