I've installed plenty, but it's been awhile. Albeit, none were ever installed on a subaru, but it's pretty standard, I'd imagine, being a 5-wire reversing polarity.
PDF for 530T - http://www.directechs.com/guides/man...N530T_1-00.pdf
the wiring 'should be' like below. not 100% sure on your wire color, though..
Left Front Window
(Up/Down) blue - blue drivers window switch
Right Front Window
(Up/Down) red/blu - blk/blu drivers kick panel
Left Rear Window
(Up/Down) blu/yel - grn/yel A drivers kick panel
Right Rear Window
(Up/Down) blu/wht - grn/wht A drivers kick panel
You never stated what year/make/model that you're trying to install it in.