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Old 03-06-2004, 02:27 PM   #8
Cosmo Dude
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Join Date: Dec 2002
Location: Location: Vic
Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD
Posts: 7,888
The plugs to the stockie radio are the same on the BG and BA.
The colours change when different sub contractors make different sections of the wiring looms over the years.

Here goes...

2A +12V from ignition
2B No connection
2C +12V from battery
2D To antenna
2E Dash illumination
2F
2H No connection
2J To center speaker amplifier
2K Left frount speaker +
2L Left frount speaker -
2M Right frount speaker +
2N Right frount speaker -

3A Left rear speaker +
3B Left rear speaker -
3C No connection
3D No connection
3F Right rear speaker +
3H Right rear speaker -
3I No connection
3J No connection

4A Earth

Code:
[2A][2C][2E] | [XX][XX] | [2K][2M]      [3A][3C] | [**][**] | [3I]
[2B][2D][2F] | [2H][2J] | [2L][2N]      [3B][3D] | [3F][3H] | [3J]     [4A]

ISO pin-out
If you understand the diagram then you can write down the colours before cutting them from the plug.
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