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Trying to figure out what speaker wires to tap into for front and rear speakers, no center. Adding a subwoofer under the passanger seat to the amplifier. Trie the 9 volt battery tester to no avail. Attched are photos of the two wiring harnesses. Any thoughts?
04-26-2021, 02:48 PM
2006 xc90 2.5 subwoofer install
