I had a hard time finding speaker wiring information when replacing my speakers in the mighty Saab. You need to know which wire is positive and negative and match it up to pos/neg on the new speaker. I believe if they are not matched you or the car might explode when listening to music.
I found this info on Saab Central:
I had to load up the WIS to figure out which wires were Positive vs. Negative to connect my new speakers. In case anybody needs this, here you go. The number at the end I think is the number labeled on the connector. Looks like 2 is always positive and 1 is always negative.
Front Left
Positive BN 2
Negative BN/GY 1
Front Right
Positive BN/BK 2
Negative BN/RD 1
Door Left (LHD)
Positive YE/WH 2
Negative OG/WH 1
Door Right (LHD)
Positive GY 2
Negative BN/RD or OG/WH 1
Rear Left
Positive BN/WH 2
Negative BN 1
Rear Right
Positive BK/GN 2
Negative BK/WH 1