09 Si Radio Issue - 8th Generation Honda Civic Forum

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Old 04-03-2019, 10:29 AM   #1 (permalink)
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09 Si Radio Issue

09 Si. I bought the car and the previous owner removed his aftermarket system. Now all I have is the tweeters that work. Not one other speaker works. So a couple questions.. do the tweeters run off the stock amp? As in could the amp actually be my issue. Fuse 5 is good. And any idea where the speaker wire is run to the rear? It appears the stock wiring is connected but honestly who knows. Not sure where to really start. I drive across the country every 2 months so 24 hours with headphones is getting old. Thanks for your help.

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Old 04-03-2019, 12:55 PM   #2 (permalink)
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The tweeters do run off the factory amp. It should be located under the driver's seat. there are two plugs that go into the amp. One that feeds it signal from the HU, and the amplified signal going out to the speakers on the larger of the 2 plugs. Have you checked the wiring at the speakers?

Here is the Audio Wiring:

:Radio Harness
+12V DC Constant White
Switchedd Accessory Violet
Ground Black
Power Antenna Gray
Remote Turn On Light Blue
Illumintation Red/Black or Gray
Left Front + Light Green
Left Front - Pink
Right Front + Gray
Right Front - Brown
Left Rear + Yellow
Left Rear - Brown
Right Rear + Blue
Right Rear - Orange

:Amplifier Outputs
Remote Turn On Light Blue
Left Front Mid + Light Green
Left Front Mid - Pink
Right Front Mid + Gray
Right Front Mid - Brown
Left Rear Mid + Yellow
Left Rear Mid - Brown
Right Rear Mid + Blue
Right Rear Mid - Orange
Subwoofer 1 + Green
Subwoofer 1 - Red

:At Speakers
Left Front Tweeter + Red
Left Front Tweeter - Green
Right Front Tweeter + Pink
Right Front Tweeter - Blue

This should help you.

I'm having a small issue myself. I need to get the signal from the HU to my Audio Control LC7i.

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