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Old 05-08-2013, 08:44 PM   #748
Scooby Specialist
Member#: 25837
Join Date: Oct 2002
Chapter/Region: South East
Location: Atlanta, GA
1996 SVX L AWD
Laguna Blue Pearl


Originally Posted by cef2lion View Post
From a totaled 2008 Forester I picked up a C123 HU for my 2005 Forester. ...
[aux doesn't work]
Correct -- pins 4 and 8 are the amplified (speaker level) subwoofer output. The 3rd wire you cut needs to be connected to chassis ground. The aux pod has a switch that will connect that to the HU's aux enable (pin 6), which will then let you select the aux input.

For anyone else installing a C-123 (or C-124) without the factory aux jack, you can simply ground the HU's pin 6 to permanently enable aux.
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