Lost my A/C and fan controls after aftermarket headunit install! - Lexus IS Forum
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post #1 of 3 (permalink) Old 08-26-2015, 08:51 AM Thread Starter
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Lost my A/C and fan controls after aftermarket headunit install!

Need some help!!

I lost my HVAC (A/C, Heating, Fan controls)
I pulled the board from the stock radio and plugged in the middle wire set.

Installed the following on a 2008 IS250 RWD:

Metra Axxess TYTO-01 (To retain Stock AMP)
Metra Axxess ASWC-1 (To retain Steering wheel controls)

What am I doing wrong? What do I need to be plugging into the OEM HVAC board? Is the board only needed or do I have to attach the cd changer and face back to the hvac board for it to work? Right now i just have the hvac board mounted and plugged in.

Thanks in advance.
Antiloop is offline  
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post #2 of 3 (permalink) Old 08-27-2017, 08:20 PM
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I'm interested in this too, because I also plan to put a stereo in my IS250 as well.
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post #3 of 3 (permalink) Old 12-29-2017, 01:25 AM
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dont know if you ever resolved this, if you remove the stock cd player your ac/fans will not work. you will need to keep the board in car.

here is a link to show you what I did to retain mine and install my setup.


HKS Hipermax II coilovers / HKS DraggerII / Kaminari Kit / VIS Invader 6 hood / Carbon Creations trunk lid / Seibon carbon grill / Alpine / Phoenix Gold / JL Audio / 19" FF7 / TRD spoiler.
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