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skybren,

 

After 50+ years of wrenching on cars, doing interior swaps, and having owned one of each of the 4 generations of Subaru OutBack Wagons, I can't say conclusively, but I would think you're in for a no.

 

eBay pictures of the two units show different wiring harness hookups. That means you'd have to pull half the dash apart and swap over the wiring harnesses as well. Then there's the various cabin temperature sensors that your car won't have, and the light sensor up by the front windshield. And that's just the visible things you can see inside the cabin. There may well be body control computers that will be different in your car, as well as being absent altogether in a manual mode HVAC system. You'll also be missing several of the mode door actuators on the heater box.

 

You can spend the money to buy the digital unit and try it try, but I'd bet money that its a waste of time, effort, and cash.

Edited by gbhrps
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It would theoretically be possible, but would require considerable wiring changes, as well as much of the heater boxes/actuators. As the manual controlled ones are all cable-operated, and the automatic one has electric actuators in there that move the blend doors....

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I can say, after trying this, as well as a couple other electronic swaps, mostly stereo stuff, that it will work, if you want to change the entire HVAC wiring, the controls on the heater box and blend doors, as well as all the associated parts that go along with it. To me, it isnt worth the effort and headaches.

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