alpine hu connected to laptop problems

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=89628
Printed Date: July 18, 2025 at 3:22 AM

Topic: alpine hu connected to laptop problems

Posted By: rustyfella
Subject: alpine hu connected to laptop problems
Date Posted: January 27, 2007 at 6:24 AM

trying to connect my alpine headunit to my laptop so i can play all the songs off it through my car stereo...

I'm using a alpine cda-9827 headunit has 3 preouts and i've connected my laptop to the front speaker output(ie Auz- i hope...)

Cheers...

Thomas

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1991 2.2L 5 speed Celica...

Replies:

Posted By: DYohn
Date Posted: January 27, 2007 at 11:39 AM

No, you will want to connect the laptop's OUTPUT to the head unit's AUX INPUT. The HU pre-outs are intended to drive external amplifiers.

By the way, sometimes using battery powered sources like a laptop can create horrible ground loop hum that is very difficult, if not impossible, to eliminate.

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