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2015 Ford Flex

Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Universal-Fit Audio for 2015 Ford Flex

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

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MTX SLH10

Empty Single 10" Ported Sledgehammer Enclosure

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Empty Single 10" Ported Sledgehammer Enclosure

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.19 cubic feet
• Mounting hardware included

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$139.95

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MTX Audio MUDSYS46

280W Peak (140W RMS) 46" 4-Speaker Overhead Amplified Bluetooth Soundbar

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280W Peak (140W RMS) 46" 4-Speaker Overhead Amplified Bluetooth Soundbar

• Peak Power: 280 watts
• Built-in D amplifier
• Weatherproof IPX-6 Rating
• (4) 6-1/2" 2-way Coaxial speakers
• USB playback and charging
• AUX input for smartphones and MP3
• Dimensions: 46.8125" W x 8.5625" H x 4.375" D

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• Peak Power: 280 watts
• Built-in D amplifier
• Weatherproof IPX-6 Rating
• (4) 6-1/2" 2-way Coaxial speakers
• USB playback and charging
• AUX input for smartphones and MP3
• Dimensions: 46.8125" W x 8.5625" H x 4.375" D

MTX TN12-02

400W Peak (200W RMS) 12" Terminator Series Single 2-ohm Car Subwoofer

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400W Peak (200W RMS) 12" Terminator Series Single 2-ohm Car Subwoofer

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Single 2 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5.44"
• Sensitivity: 86.4 dB

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$89.95

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MTX MUD6SP

21” 6-Speaker Amplified Bluetooth Soundbar

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21” 6-Speaker Amplified Bluetooth Soundbar

• Built-in Class D amplifier
• Weatherproof IPX-6 Rating
• (4) 3" Full-range speakers
• (2) 1" Dome Tweeters
• AUX input for smartphones and MP3
• Dimensions: 21-3/8" W x 3-7/16" H x 4-5/16" D

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$399.95

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• Built-in Class D amplifier
• Weatherproof IPX-6 Rating
• (4) 3" Full-range speakers
• (2) 1" Dome Tweeters
• AUX input for smartphones and MP3
• Dimensions: 21-3/8" W x 3-7/16" H x 4-5/16" D

(2) MTX 5512-22 12" 1600 Watt Peak DVC 2-ohm Car Audio Subwoofers Subs

800W Peak (400W RMS) 12" 55 Series Dual 2 Ohm Subwoofer Package

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800W Peak (400W RMS) 12" 55 Series Dual 2 Ohm Subwoofer Package

• 800W Peak
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• Spider Plateau Venting Mechanically Cools the Voice Coil
• Radial Ribbed T-Yoke Dissipates Heat and Decreases Distortion

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$379.90

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Ships in 10-14 days

• 800W Peak
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• Spider Plateau Venting Mechanically Cools the Voice Coil
• Radial Ribbed T-Yoke Dissipates Heat and Decreases Distortion

MTX SLH10X2

Empty Dual 10" Ported Sledgehammer Enclosure

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Empty Dual 10" Ported Sledgehammer Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.38 cubic feet
• Mounting hardware included

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$209.95

In stock

Only 3 Left!

MTX GENERALFRC

Polaris General OEM to Aftermarket Adapter

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Polaris General OEM to Aftermarket Adapter

• Polaris General OEM to Aftermarket Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2881115 Soundbar

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List price $49.94
-12% $43.95

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Ships in 10-14 days

• Polaris General OEM to Aftermarket Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2881115 Soundbar

MTX S6512-44

1000W Peak (500W RMS) 12" S65 Series Dual 4-ohm Car Subwoofer

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1000W Peak (500W RMS) 12" S65 Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Mount depth: 6.9375"
• Sensitivity: 86.7 dB

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$399.95

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MTX SLH12X2S

Empty Dual 12" Ported Square Sledgehammer Enclosure

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Empty Dual 12" Ported Square Sledgehammer Enclosure

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.66 cubic feet
• Mounting hardware included

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$199.95

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MTX MUDSYSPFCLAMP

Pro-Fit and Profile Cage Replacement Clamps for select MUDSYS units (Pair)

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Pro-Fit and Profile Cage Replacement Clamps for select MUDSYS units (Pair)

• Pro-Fit and Profile Cage Replacement Clamps (Sold as Pair)
• Replaces the factory underside clamps of MUDSYSxx units
• Two supplied bolts for clamp adjustments to roll cage mounting options
• Compatible with Polaris Ranger, General and Can-Am Defender models

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$49.95

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Ships in 10-14 days

• Pro-Fit and Profile Cage Replacement Clamps (Sold as Pair)
• Replaces the factory underside clamps of MUDSYSxx units
• Two supplied bolts for clamp adjustments to roll cage mounting options
• Compatible with Polaris Ranger, General and Can-Am Defender models

MTX 5512-44

800W Peak (400W RMS) 12" 55 Series Dual 4-ohm Car Subwoofer

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800W Peak (400W RMS) 12" 55 Series Dual 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6.188"
• Sensitivity: 85.7 dB

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$189.95

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MTX Thunder TH400.4

400W RMS Class D Thunder Series 4 Channel Car Amplifier

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400W RMS Class D Thunder Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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List price $479.95
-10% $429.95

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Available Offers (2) for MTX Thunder TH400.4
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.
Used from: $300.97

MTX RZRFRC

Polaris OEM to Aftermarket RZRSC Adapter

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Polaris OEM to Aftermarket RZRSC Adapter

• Polaris OEM to Aftermarket RZRSC Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2879459 Audio Pod

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List price $69.95
-14% $59.95

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• Polaris OEM to Aftermarket RZRSC Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2879459 Audio Pod

MTX RZRSC

Polaris OEM Stereo to Aftermarket Subwoofer Output Adapter

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Polaris OEM Stereo to Aftermarket Subwoofer Output Adapter

• Polaris OEM Stereo to Aftermarket Subwoofer Output Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2879459 Audio Pod

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List price $69.95
-14% $59.95

Available

Ships in 10-14 days

• Polaris OEM Stereo to Aftermarket Subwoofer Output Adapter
• Allows connection of aftermarket amplifiers and speakers
• Designed for use with MTX 2879459 Audio Pod

MTX PROXP-20-CORE

Amplifier Mounting Plate and Harness Kit for 2020-up Polaris RZR Pro XP Vehicles

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Amplifier Mounting Plate and Harness Kit for 2020-up Polaris RZR Pro XP Vehicles

• Amplifier mounting plate and harness kit
• Pe-amp and speaker wiring harnesses included
• Compatible with 2020-up Polaris RZR Pro XP vehicles

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List price $329.95
-9% $299.95

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• Amplifier mounting plate and harness kit
• Pe-amp and speaker wiring harnesses included
• Compatible with 2020-up Polaris RZR Pro XP vehicles

MTX Terminator TN3004

300W RMS Class D Terminator Series 4 Channel Car Amplifier

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300W RMS Class D Terminator Series 4 Channel Car Amplifier

• 50 watts x 4 channel + @ 4 ohm
• 75 watts x 4 channel + @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm + @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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$299.95

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FREE Belva Amp Kit at Checkout!
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.

MTX MUDPRC

Polaris RideCommand to MTX Subwoofer Enclosure Adapter

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Polaris RideCommand to MTX Subwoofer Enclosure Adapter

• Connects Polaris RideCommand with MTX vehicle-specific subwoofer enclosures
• Required only when using RideCommand as a source for playing music
• Prevent shutdowns on output 3 during music playback
• Easy installation using a factory-style plug for output

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• Connects Polaris RideCommand with MTX vehicle-specific subwoofer enclosures
• Required only when using RideCommand as a source for playing music
• Prevent shutdowns on output 3 during music playback
• Easy installation using a factory-style plug for output

MTX MUD100-4

800W Peak (400W RMS) Class D MUD Series 4 Channel Marine and Powersports Amplifier

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800W Peak (400W RMS) Class D MUD Series 4 Channel Marine and Powersports Amplifier

• 50 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $379.95
-11% $339.95

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Used from: $273.42

MTX SLH12S

Empty Single 12" Ported Square Sledgehammer Enclosure

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Empty Single 12" Ported Square Sledgehammer Enclosure

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.65 cubic feet
• Mounting hardware included

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$159.95

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MTX Thunder TH1500.1

1500W RMS Class D Thunder Series Monoblock Car Amplifier with Bass Remote

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1500W RMS Class D Thunder Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $729.95
-11% $649.95

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Available Offers (2) for MTX Thunder TH1500.1
FREE NVX Amp Kit at Checkout!
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.

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    FAQ for Universal-Fit Audio & Electronics in 2015 Flex

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2015 Ford Flex?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your Flex.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.