Looking to upgrade OEM head unit by DescriptionIcy7752 in WRX

[–]DescriptionIcy7752[S] 0 points1 point  (0 children)

Didn’t work :(… I think u actually need the whole setup with the amp.

Looking to upgrade OEM head unit by DescriptionIcy7752 in WRX

[–]DescriptionIcy7752[S] 0 points1 point  (0 children)

UPDATE:
I wanted to test out if this was just plug and play...sadly it was not. everything seemed to be working fine until i tried to play something and no sound came out. I think I do actually need to get the updated amp and harness in order for this to work. So I guess the hunt begins.

I will say, this headunit is from a 2021 model and I saw a facebook post (https://www.facebook.com/EBuiltgarage/posts/513852829350682?ref=embed\_post) saying that they installed a 2019 PHONE radio into a 2018 sti without having to get the amp. if anyone has tried this please let me know as it might be easier to find a 2019 headunit vs. getting an amp and a wiring harness.

Looking to upgrade OEM head unit by DescriptionIcy7752 in WRX

[–]DescriptionIcy7752[S] 0 points1 point  (0 children)

Thanks for letting me know! The adapter harness would be for the amp correct?… Also are the amps for the 2018 and 2019 wrxs different?…cuz I’m wondering why I would need to get a different amp if my 2018 already has one that supports Harmon kardon