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Old 01-12-2013, 04:19 AM   #385
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 outnspace View Post
Do you know if the factory SubWoofer has RCA plugs that go into this output? I'm looking at the install document for that

(link here: [Subaru P/N H630SFJ000 -- Impreza 5-Door 10" Powered Subwoofer, made by Kicker])

But I don't see anything connecting to the SubWoofer. Do I need to make an RCA adapter coming from the sub that plugs into those HU plugs?

Originally Posted by outnspace View Post
Just heard back from him. For anyone else with this question, the answer is to use his 16-pin adapter, which plugs into factory on one side and has RCA jacks on the other for plugging into the HU RCA jacks. He can also add wires in that adapter for the parking brake and reverse signals, so it makes it very easy to hook up to your new HU.

That adapter along with the 20-pin adapter make it an easy hookup. Of course you'll have to follow the directions, but it is not too difficult.

I bought all the cables I needed from him and I highly recommend him to anyone else taking this on. He's been extremely helpful all along the way.
outnspace's Subwoofer is the new one made by Kicker for Subaru. It has a built-in amp, and a T-harness that taps the front speaker channels from the HU. Connection-wise, it's very similar to Subaru's older under-seat subs. To use it with an aftermarket HU, your only option is to connect it the same way -- inserted between the car's factory radio harness and the power/speaker harness that connects to your HU. See more information in this post (includes a link to a long thread on IWSTI that has more info and pictures about the Kicker sub).

My 16-pin harness is to retain use of your car's factory 3.5mm stereo aux jack with an aftermarket HU. The parking brake and reverse gear signals are only present on the factory aux harness in 2012-up Imprezas (not WRX or STI yet), Crosstreks, and certain 2011-up Foresters.
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