PROJEKT36 · WIRING

Radio & speakers

The radio plug with every speaker pair for the basic six-speaker stereo, and the HiFi amplifier that drives ten speakers. Useful when fitting a new head unit. Hover or tap a row to see where the wire goes.

Standard E36 sedan and coupé from the 1998 BMW wiring manual. Harman Kardon, Touring and convertible versions left out. On a phone, scroll the diagram sideways.

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SW blackRT redGN greenBL blueGE yellowBR brownWS white GN/SW = green with black stripe supply / ground of a part shown elsewhere

Radio, 6-speaker stereo

fuse F9 20A fuse F44 ground X18723 0.5 GR/RT light switch 58g 0.5 SW/WS cluster X17 pin 2 0.5 WS/BR telephone, via X322 pin 1 0.5 WS antenna amplifier N8 X424 pin 1 0.75 GE/RT H58 X1381 / tweeter H59 pin 2 0.75 GE/BR H58 X701 / tweeter H59 pin 3 0.75 BL/SW H51 X1380 / tweeter H50 pin 2 0.75 BL/BR H51 X700 / tweeter H50 pin 3 0.75 GE/VI rear left speaker H46 pin 2 0.75 GE/GR rear left speaker H46 pin 3 0.75 BL/VI rear right speaker H45 pin 2 0.75 BL/GR rear right speaker H45 pin 3 X18126 Radio radio N9, 6-speaker stereo 9 Battery (30) 5 Radio position (R) 15 Ground 13 Lighting (58g) 10 Speed (GAL) 4 Mute 16 Antenna amplifier supply 1 Left front + 8 Left front − 2 Right front + 11 Right front − 3 Left rear + 12 Left rear − 6 Right rear + 14 Right rear −

How it works

In the basic six-speaker system the radio drives the speakers directly: each front side has a door speaker and a tweeter on the same pair, the rear shelf has one speaker per side.

Fitting an aftermarket head unit: pin 9 is the permanent feed, pin 5 the switched one, pin 15 ground, and the eight speaker wires are colour-paired yellow (left) and blue (right).

Redrawn from BMW ETM 6510.0 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out. Not covered: pin 7 (I-bus, 0.35 mm² yellow) is not used.

HiFi amplifier, 10 speakers

fuse F9 20A ground X13016 0.5 WS radio X18126 pin 16 0.75 GE/RT radio pin 1 0.75 BL/RT radio pin 2 0.75 GE/SW radio pin 3 0.75 BL/SW radio pin 6 0.75 BR/OR radio pins 8 / 12 / 11 / 14 0.75 GE/SW H55 via X18196 5/10 0.75 GE/RT H59 via X18196 1/6 1.5 BL/WS H58 X1381 / X701 0.75 GE/GR H57 X1002 pins 2/3 0.5 GE H56 X1002 pins 4/1 0.75 BL/RT H54 via X18198 5/10 0.75 BL/SW H50 via X18198 1/6 1.5 BL/RT H51 X1380 / X700 0.75 BL/VI H52 X1001 pins 2/3 0.5 BL H53 X1001 pins 4/1 A18 HiFi amplifier HiFi amplifier, X605 / X606 X605·1 Battery (30) X605·3 Ground X605·2 Switch-on (ANT) X606·16 Input front left + X606·15 Input front right + X606·3 Input rear left + X606·2 Input rear right + X606·17/4/14/1 Inputs − X606·25/26 Left front mid-range X606·21/22 Left front tweeter X605·7/8 Left front woofer X605·11/12 Left rear woofer X606·10/11 Left rear tweeter X606·8/9 Right front mid-range X606·23/24 Right front tweeter X605·9/10 Right front woofer X605·5/6 Right rear woofer X606·12/13 Right rear tweeter

How it works

With HiFi the radio's speaker outputs go only to the amplifier, which drives ten speakers: a woofer, mid-range and tweeter per front side and a woofer and tweeter per rear side.

Redrawn from BMW ETM 6510.1 (05/99), standard petrol E36 (316i–328i); diesel and M3 parts are left out. Not covered: the CD changer N22 (supply X18180 pin 2 from F33 10A, ground pin 1; data plug X18520 to X18521, shielded).

Reading the wire codes

BMW labels every wire with its size and colour, for example 2.5 SW/GE: 2.5 mm², black (schwarz) with a yellow (gelb) stripe. Connectors are numbered X…, followed by the pin. The wires in these diagrams are drawn at relative thickness, so the 25 mm² battery cable stands out from a 0.35 mm² signal wire.

Codes used here: SW = black, RT = red, GN = green, BL = blue, GE = yellow, BR = brown, WS = white.