Audi Sound System (Non B&O) wiring diagram

[mk7_drew]

Does anyone have any information on the Non-B&O Wiring color codes for the door speakers and tweeters?
I was able to find the wiring diagram but cannot find any information on the polarity of the wires.
I am installing a DSP for my sound system (external enclosures for Mids/Highs and a Subwoofer)

[Hostile]

Use a multimeter?

[mk7_drew]

To my knowledge multimeter won’t tell the polarity of each wire. If you have a method I can use that I’m not aware of please let me know.

[Smac770]

To test polarity, you'd have to put a 9V on the leads and see if the speaker moves inward or outward; don't hold it there for long, current through a non-moving speaker will heat the voice coil up quickly.

Audi elected to omit the polarity information from the B9 wiring diagrams.

[Hostile]

To my knowledge multimeter won’t tell the polarity of each wire. If you have a method I can use that I’m not aware of please let me know.

Google says you can.

https://electrouniversity.com/how-to...th-multimeter/

[Smac770]

That web page makes no sense on the meter test. There's also the question of polarity of the amplifier outputs vs polarity of the speaker drivers.

All you're measuring based on that test is nothing, and if the speaker is still attached to the amp, then you're just reading the DC offset of the amp channel. Now, if you had a meter across the speaker terminals and you pushed the cone inward and got a negative voltage followed by a positive voltage when you released the cone, then you have the red on + and the black on -. But putting a meter on a speaker just sitting on a table is not going to read anything.