Figured it out. It's late and I'm tired. I was connecting the Metra adapter wire to the head unit wire, wondering why nothing was happening. The blue wire on the Metra adapter isn't even used. The antenna wire from the head unit needs to connect to the antenna turn on wire on the 10 pin connector. Soon as I connected this, every channel came in as HD.
2015+ Antenna Turn On Wire
Hey everyone,
I have a '16 WRX Premium w/o HK system. Initially the radio reception was "okay" meaning it wasn't as good at holding HD channels as my '15 Legacy but it held it sometimes. I installed a Kenwood DDX9902s and I used the Metra 40-LX11 adapter for the antenna. I noticed with the new head unit, radio reception was worse than it was before. In my attempt to figure this out, I separated the connection between the antenna turn on wire from my head unit and blue wire on the Metra adapter. As I suspected, absolutely no difference. Upon further inspection, the factory antenna connector does NOT have a female slot for the male pin in the Metra adapter to connect to.
This leads me to wonder, where is the antenna turn on wire in this car and why is it not connected to the factory antenna connection?
Factory Connection
![Electronics Wire Technology Electronic device Electrical wiring]()
![Wire Cable Auto part Technology Finger]()
Metra 40-LX11 adapter
![Wire Electronics Technology Electronic device Finger]()
I have a '16 WRX Premium w/o HK system. Initially the radio reception was "okay" meaning it wasn't as good at holding HD channels as my '15 Legacy but it held it sometimes. I installed a Kenwood DDX9902s and I used the Metra 40-LX11 adapter for the antenna. I noticed with the new head unit, radio reception was worse than it was before. In my attempt to figure this out, I separated the connection between the antenna turn on wire from my head unit and blue wire on the Metra adapter. As I suspected, absolutely no difference. Upon further inspection, the factory antenna connector does NOT have a female slot for the male pin in the Metra adapter to connect to.
This leads me to wonder, where is the antenna turn on wire in this car and why is it not connected to the factory antenna connection?
Factory Connection
Metra 40-LX11 adapter
1 - 9 of 9 Posts
I believe it was pin 8.
In the picture, it's the solid blue wire on the 10 pin.
I put a red arrow pointing to it.
![Wire Electrical wiring Technology Cable Electronic device]()
In the picture, it's the solid blue wire on the 10 pin.
I put a red arrow pointing to it.
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