HiPwr HU to factory amp'd speakers

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=6791
Printed Date: February 11, 2026 at 1:00 AM

Topic: HiPwr HU to factory amp'd speakers

Posted By: F4Pilot
Subject: HiPwr HU to factory amp'd speakers
Date Posted: December 16, 2002 at 10:34 PM

Im hoping someone can help with this. As a gift, Im giving an aftermarket head unit for a '91 Mercedes 300SEL. Does anyone know:

1. Does this model have amplified speakers? If so:

2. I was told that you can wire a hi-power head unit with only the + leads to the speakers only to avoid overpowering factory speaker amps?? Is this possible? If so:

3. Please send wiring diagram for '91 300SEL.

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02 Odyssey / 99 F4

Replies:

Posted By: F4Pilot
Date Posted: December 17, 2002 at 1:25 PM

I found some answers. Some models are amplified, some arent.

If it is factory amp'd - the amps to the left/right side speakers are located in the trunk respectively. The front speakers are also powered from the trunk amps.

Im told the HU hi-power input will not damage the factory amps. Would like to find a diagram now, probably only available from the dealer.

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02 Odyssey / 99 F4

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