Troubleshooting stereo wiring harness
TECH Resident
Joined: Jul 2007
Posts: 967
Likes: 53
From: Winter Haven FL
Check close for a thin stripe on the wires. Usually you'll have 2 wires the exact same color but 1 will have a thin grey/white/beige stripe. Sometimes the stripe is hard to see unless you are looking deeper into the loom.
Joined: Nov 2003
Posts: 11,330
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
That looks like the factory harness has been butchered rather than using a proper harness adapter to make it plug-and-play. The factory harness has multiple wires of the same color which can only be distinguished by their position in the connector. For example, there's a brown for dash light power and a brown for left rear speaker positive. You can find all the wire colors and their connector pin positions in the Monsoon FAQ sticky at the top of the section.
