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Discussion Starter · #1 ·
Hello, Im trying to solve an issue where my speakers give off a hissing sound when the speakers amp trigger wire is powered. I custom installed a pioneed DEH3400Ub radio. The harness is completely custom, no pre-made harness that i bought..I hand wired, and soldered them together. I do get sound, seems to be ok other than the hiss i get. The sound is there even if I turn my radio off.
Any suggestions? Did i hook the trigger wire in wrong? anything would help.

FYI, there are two wires unused, dark gray, I believe it is the dimmer wire, which i wont need, the other is a brown wire with a white strip, not sure what it is.

2005 Hyundai XG350L
Infinity sound
+Custom Radio install
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