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Soundgate™ SubStage™ SSIEXT07 by Kicker

Custom-fit powered subwoofer for 2007-up Chevrolet Silverado and GMC Sierra Extended Cab

Item #: 206SSIEXT7

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Custom-built bass for your vehicle

Are you disappointed with the level of bass your factory system provides, but don't like the idea of installing a universal subwoofer and wiring kit? The Soundgate SubStage powered subs by Kicker are made to fit in specific vehicles, so you get harnesses that connect to your factory wiring, and a sub that's made to mount where your particular vehicle has space. Each system comes with vehicle-specific instructions that guide you every step of the way. The package also includes all of the wiring and hardware you need to complete the installation — that means no running to the hardware store to find a part that you didn't know you'd need.

Ready to rumble

The SubStage doesn't skimp on power and performance — it comes equipped with a 10" sub powered by a perfectly matched 200-watt amp, all housed in a custom enclosure that's optimized for sound quality. You'll look forward to rumbling lows that can play back the biggest digital drum beat yet also deliver the low-frequency subtleties of a standup bass. Kicker's earned their reputation for making subs that crank out bass you can feel and the SubStage is no exception.

The SubStage SSIEXT07 fits the 2007-up Chevrolet Silverado and GMC Sierra Extended Cab, and the subwoofer installs under the passenger's side of the rear seat. This kit will not install in 2007 Classic models. It connects to the factory stereo via a two wire taps for signal, and attaches to the battery for power. Please identify your car before purchasing to make sure it'll work with this package, or you can call one of our Advisors at 1-888-955-6000 to confirm fit.

Product Highlights:

  • custom-fit powered subwoofer
  • enclosure mounts under the rear seat on the passenger's side
  • molded plastic enclosure
  • 10" woofer
  • built-in amplifier (200 watts RMS)
  • includes instructions for your Silverado/Sierra and all installation parts
  • warranty: 1 year
  • Our 60-day money-back guarantee

Vehicle-specific enclosures with subs? Say what?

Instead of the usual sub in a box, the manufacturer creates a molded enclosure that fits perfectly into a convenient spot in your specific vehicle, housing a high-quality sub. Some enclosures even include a built-in amp, for the ultimate in stealth bass. The advantages? You don't lose much space (if any), your sub is perfectly matched to its enclosure, and your enclosure has a factory look that won't tell potential thieves you have an awesome sound system. Doesn't get better than that.

Hands-on research

What's in the box?

Download owner's manual

  • Subwoofer assembly (enclosure/ 10" subwoofer/ amplifier)
  • 11.5' Wiring harness
  • 8.5' Power harness (with in-line fuse holder)
  • 2 Wire taps
  • 5" Adapter harness (speaker-level input)
  • 15 amp mini blade fuse
  • Six 6" Zip ties
  • Installation instructions
  • Warranty information

Product Research

Features

Overview: Kicker's SoundGate SubStage factory audio upgrade kits are designed to fit in specific year/make/model vehicles. The SSIEXT07 is compatible with select 2007 and later GM full size extended cab pickups (please confirm fit with the Crutchfield vehicle selector, not compatible with the solid rear bench seat). Included with the system are a 10" subwoofer in a custom enclosure, subwoofer amp, and all the necessary cables to power the amplifier and connect to the factory radio.

Subwoofer: The single 10" Kicker subwoofer is loaded in a custom enclosure and powered by a 200-watt amplifier mounted to the enclosure. The included adapter harness taps into the factory stereo's wiring (for subwoofer signal input) and the power cable is connected to the accessory lug in the engine compartment. Specific wire routing instructions are included. The subwoofer is mounted under the rear seat on the passenger's side.

Electrical System: The amplifier is designed to have minimum impact on the truck's charging system.

Dimensions: The listed dimensions do not include the mounting brackets (regardless of these measurements, the subwoofer enclosure is custom built to fit under the rear seat):

  • Width: 20-1/2"
  • Height: 9-1/4"
  • Depth: 16-5/8"

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Soundgate™ SubStage™ SSIEXT07 by Kicker Reviews

Average Customer Review:

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Easy as that

Written By Amberly, Key West , FL on Tuesday, October 07, 2014

Crutchfield Customer Review (What's this?)

The unit was easy to put in . fit in the truck perfect !

Pros: easy to install

Cons: directions could be a little more clear

install

Written By jerry b, mesquite nevada on Monday, May 27, 2013

Crutchfield Customer Review (What's this?)

easy to install, fits like a glove, sounds great, wired to right rear speaker so you can use the fader adjustment for sub input level.

Pros: the fit is great, sound is great, hooks up to rear speaker output, called kicker for info, tech support was great.

Cons: instructions for wire connection not easy to figure out, says to connect to #2 and #9 pins on connecter plug , should just say connect to front or rear speaker wires +- ( green wire + brown wire is -)

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