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Bypassing Factory Amp..Need Electrical Diagram

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Old 12-28-15, 07:53 AM
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Indulgent
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Default Bypassing Factory Amp..Need Electrical Diagram

I'm going to bypass the factory amp on my 2003 LS430 No ML and No Nav and was wondering if anybody has an electrical diagram showing the inputs and outputs of the amp. I posted a picture of a the factory amp below. It has a weird combination of impedences and I'm going to replace all 4 speakers with 4 ohm 6.5" and have them powered by the Pioneer head unit that I already installed.
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Old 12-28-15, 11:46 AM
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whooodat
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Maybe my year has a different setup than yours. I remember when I tested my 2005 with ML, the ML amplifier had separate 4 pin connector for the subwoofer and the 20 long pin connector for the doors and tweeters. If I wanted to bypass the factory amp I could just disconnect the 4 pin connector and the subwoofer would not get power.

Does the Pioneer amplifier have just one connector for all speakers?

Last edited by whooodat; 12-28-15 at 11:58 AM.
Old 12-28-15, 01:47 PM
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rkw77080
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Does this help?
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2003 Audio.pdf (99.4 KB, 710 views)
Old 12-28-15, 02:29 PM
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Originally Posted by rkw77080
Does this help?
It helps out a lot...thanks
Old 12-28-15, 02:31 PM
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Originally Posted by whooodat
Maybe my year has a different setup than yours. I remember when I tested my 2005 with ML, the ML amplifier had separate 4 pin connector for the subwoofer and the 20 long pin connector for the doors and tweeters. If I wanted to bypass the factory amp I could just disconnect the 4 pin connector and the subwoofer would not get power.

Does the Pioneer amplifier have just one connector for all speakers?
According to the excellent diagram that rkw77080 has provided it looks like all 4 door speakers are on connector S30 and the two tweeters on the front dashboard are on connector S29 so I would assume that the door speakers are on the same connector and the tweeters are on a different connector.
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