Finally, something I can help with!
You should run new speaker wire.  I went to best buy and asked the
installers, and they looked my set up over and found a common ground wire.
It should probably say something about the grounds in your instructions for
the deck(mine did, but who reads instructions till after it doesn't
work)...now it works at loud volumes too.
hope this is helpful.
Kim

>From: Zoran Mladen <zmladen@AVOLENT.COM>
>Reply-To: Zoran Mladen <zmladen@AVOLENT.COM>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Help with speaker wiring needed
>Date: Fri, 13 Jul 2001 11:13:19 -0600
>
>Hello all!
>
>I am having a peculiar problem with the Blueberry (84 Vanagon GL).  When
>purchased, one rear speaker was missing.  I replaced with it with a new one
>courtesy of Ken.  Went in no problem.
>
>Checked the wiring on the radio and here is what I find.  The radio has
>seperate wires for each of the four speakers.  It looks like the Vanagon
>wiring has one hot wire for each rear speaker, and they share a common
>ground wire.
>
>I hook up all of the wires, and everything works great at low volumes.
>When
>I turn the volume up, it starts crackling and the radio turns on and off.
>If I only wire one rear speaker (same result using either), everything
>works
>fine at all volume.  But with both hooked up, wacky stuff happens.
>
>Anyone have a clue as to the problem here????
>
>Thanx!
>
>Z

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