Metra 40-SB10-18 Antenna Adapter

Works with select 2006-up Subaru vehicles (Motorola male to OEM antenna female)

Item #: 12040SB108

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8 Reviews

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This antenna adapter lets you connect an aftermarket receiver to the factory antenna cable in select 2006-up Subaru vehicles. The adapter has a Subaru female plug on one end and a Motorola male plug on the other.

You'll also need this Subaru adapter if you are connecting an FM modulator to your factory radio. Warranty: 60 days.

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.

Metra 40-SB10-18 Antenna Adapter Reviews

Average Customer Review:

8 reviews
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Written By SemiMBA, Fremont, CA on Friday, July 18, 2014

Crutchfield Customer Review (What's this?)

Doesn't support the Subaru connector fully

Pros: 1. Free with purchase (not really free, it is part of the purchase)

Cons: 1. Too short

Great but not enough

Written By Corey, Sykesville, Md on Monday, April 21, 2014

Crutchfield Customer Review (What's this?)

Great bolt in product but the reception of the radio stations are not as great as factory. One flaw in the product is that I have noticed is that the factory radio and connector has two wires and the adaptor only has one. I would recommend this adaptor if you live in or close to a city because reception is flawless but outside more that 20 miles, the signal goes in and out.

Pros: Bolt in, Quick shipping

Cons: Reception is not the best outside the city

Subaru Antenna Adapter

Written By Phantomsfbw, Annapolis, MD on Tuesday, August 13, 2013

Crutchfield Customer Review (What's this?)

If you have a Subaru and replacing the head unit, this will keep you from having to completely replace your antenna. Save your self some time and get it if your vehicle calls for one of these.

Pros: Easy to install - saves time.

Cons: None

free Subaru Antenna Adapter

Written By gotkimchi, Eastbay, Norcal on Saturday, July 27, 2013

Crutchfield Customer Review (What's this?)

Thanks Crutchfield for the Subaru Antenna Adapter. It was a perfect length and fit.

Pros: If you want to go with an aftermarket radio, you will need this Subaru Antenna Adapter. The length was perfect.

Cons: none.

Works, but a little short

Written By cipher_nemo, State College, PA on Monday, October 22, 2012

Crutchfield Customer Review (What's this?)

It fit and works fine, but it's a little short. They really don't give you enough length, making install more of a pain. I had to attach this cable last since it was the shortest cable of my ENTIRE build. In other words I had to hold up the entire DIN adapter with my head-unit and Audio Control EQ with one hand while connecting this antenna cable with another. I couldn't rest the assembly on top of the shifter like I did with other cables.

Pros: Works

Cons: Length

Subaru Antenna Extension Cable

Written By CW, Morgan, UT on Friday, May 25, 2012

Crutchfield Customer Review (What's this?)

Nice piece of hardware.

Pros: Well designed, good quality components.

Cons: None.


Written By DL, PA on Thursday, October 06, 2011

Crutchfield Customer Review (What's this?)

Simple to install and works.

works great

Written By steele, spotsylvania, va on Friday, August 12, 2011

Crutchfield Customer Review (What's this?)

I had problems getting the right part for my new 2011 car. was very relieved that this was the right part and works great.

Hands-on research

What's in the box?

Download owner's manual

  • Subaru antenna extension

Product Research


Compatibility: The Metra AntennaWorks Subaru antenna adapter cable (40-SB10-18) provides connection between select Subaru factory antennas and your new aftermarket car stereo's antenna input (Motorola).

Our Product Research Team

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