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21-01-2025, 08:10 PM
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mezzo forte
Join Date: Dec 2006
Location: Geelong
Posts: 309
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Hi all.
I'm trying to get to the bottom of a problem with a 2011 Focus. The speaker wires that come out the back of the head unit differ in colour to the speaker wires in the door - this leads me to believe that somewhere between the head unit and speaker there is an intercept or some other circuitry. The problem I'm having is no sound. The head unit and speakers are all tested independently and working; just not when connected together through the factory harness. If I power up the head unit from a nearby external power source (not the car), jump wires from the HU to the speaker wires in the dash, I get sound. However, if I plug the HU straight into the factory harness and turn the key on, I don't get sound. This leads me to believe the car is doing something funky between the dash and the speakers in the doors. Can anyone shed light on this? Cheers, Nic |
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Wiring difference between head unit and speakers
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