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Old 08-30-2022, 10:48 AM   #1
Scooby Newbie
Member#: 531022
Join Date: Aug 2022
Chapter/Region: MAIC
Location: West Chester, PA
1994 WRX STI

Default 1994 Subaru WRX STI Head Unit Switchout

This weekend I had the first chance to crack open the dash on my old 1994 and found a fairly clean looking rats nest of wires. I took out the Pioneer head unit that was still set for Japanese FM radio stations and installed an Atoto head unit. I had planned to keep the cigarette lighter socket and add an in dash TPMS socket from Amazon but looking at the fitment once it was put together I hated it. The way that it sits now the pocket on the bottom is the perfect size for a current Iphone 13 mini and the top pocket leaves enough space that it's not blocked when the cup holder is extended.

This is the rats nest when I took the dash cover off, Fairly clean but the positive and ground had been tapped for a gauge at some point :
IMG_0983 by Joseph Alcohol, on Flickr

I used this wire diagram that matched what the Japanese owner had used in the past to update to the pioneer head unit :
IMG_0992 by Joseph Alcohol, on Flickr

This is the head unit and dash pocket that I took out :
IMG_0986 by Joseph Alcohol, on Flickr

And the final product :
IMG_1030 by Joseph Alcohol, on Flickr

....And I got really angry with myself when I cracked the surround trying to get it over the bottom pocket.
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