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2016 Cadillac CT6

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 2016 Cadillac CT6

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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Escort Smartcord USB

Radar Detector Power Cord w/ Two Amp USB Charging Port

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Radar Detector Power Cord w/ Two Amp USB Charging Port

• Direct wire power cord
• Designed for laser and Radar detectors
• Prevents interference with driving functions
• Compatible with Passport 8500, 9500iX, Solo S3 and S4 Models
• Installs in vehicle fuse panel

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$39.95

In stock

• Direct wire power cord
• Designed for laser and Radar detectors
• Prevents interference with driving functions
• Compatible with Passport 8500, 9500iX, Solo S3 and S4 Models
• Installs in vehicle fuse panel

NVX NDA6004

1200W Peak (600W RMS) Class D N-Series 4-Channel Amplifier

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1200W Peak (600W RMS) Class D N-Series 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Available Offers (2) for NVX NDA6004
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
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NVX - Worth the Envy - Direct to Consumer Car Audio

Install Bay 89-00-9031 by Metra

12"x12"x1/8" ABS Plastic Sheet

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12"x12"x1/8" ABS Plastic Sheet

• 12" x 12" ABS Blank Panel Trim
• Customize The Blank Panel By Shaping It Or Cutting It Out
• Use It To Fill In Spaces And Gaps Or To Mount Accessories

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• 12" x 12" ABS Blank Panel Trim
• Customize The Blank Panel By Shaping It Or Cutting It Out
• Use It To Fill In Spaces And Gaps Or To Mount Accessories

NVX VADM4 v2 (VADM4v2)

500W RMS Class D V-Series Micro Full-Range 4-Channel Car/Marine/Powersports Amplifier

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500W RMS Class D V-Series Micro Full-Range 4-Channel Car/Marine/Powersports Amplifier

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Available Offers (2) for NVX VADM4 v2 (VADM4v2)
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.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
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NVX XBTPN08

Positive/Negative Battery Terminal Clamp with Two 1/0 or 4 Gauge and Two 8 Gauge Outputs

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Positive/Negative Battery Terminal Clamp with Two 1/0 or 4 Gauge and Two 8 Gauge Outputs

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 4 outputs
• Two 1/0 or 4 Gauge and two 8 Gauge outputs

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• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 4 outputs
• Two 1/0 or 4 Gauge and two 8 Gauge outputs

Limited time!

NVX SQW104

1200W Peak (600W RMS) 10" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

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1200W Peak (600W RMS) 10" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

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List price $299.99
-17% $249.99

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• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

Limited time!

NVX XGR665

Universal Mesh Grilles for Most 6.5" Speakers

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Universal Mesh Grilles for Most 6.5" Speakers

• Universal 6.5" Speaker Mesh Grilles
• Designed for use for most 6.5" speakers
• Also compatible with select NVX 6.5" speakers

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• Universal 6.5" Speaker Mesh Grilles
• Designed for use for most 6.5" speakers
• Also compatible with select NVX 6.5" speakers

Viper 5308V

2-Way Remote Start Keyless Entry System with 4-Button Transmitter

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2-Way Remote Start Keyless Entry System with 4-Button Transmitter

• 2-Way 5-Button Remote Car Starter
• With 4-Button Transmitter
• 1320 feet Range
• Antenna With Integrated Valet Switch & LED
• Built-in security features

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List price $379.99
-16% $319.99

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• 2-Way 5-Button Remote Car Starter
• With 4-Button Transmitter
• 1320 feet Range
• Antenna With Integrated Valet Switch & LED
• Built-in security features

NVX XKIT44

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 4-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

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Available Offers (5) for NVX XKIT44
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
Used from: $90.99
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Belva BLPCAM2

License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

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License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Resolution: 720 x 480 
• Waterproof: Yes
• Nightvision: Infrared LED's

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• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Resolution: 720 x 480 
• Waterproof: Yes
• Nightvision: Infrared LED's

Single 12" Vented MDF Subwoofer Enclosure (Belva 1SV12B)

12-inch Vented Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.8 cu ft airspace 1SV12B)

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12-inch Vented Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.8 cu ft airspace 1SV12B)

• Single 12" Vented MDF Enclosure
• Holds one 12" subwoofer
• 3/4 MDF (Medium Density Fiberboard) Construction
• Durable black carpeting
• Gold Terminals
• Internal Box Volume: 1.8 cubic ft.

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Audiovox FMDIRB

FM Modulator Relay Box and Direct Adapter

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FM Modulator Relay Box and Direct Adapter

• Converts internal wireless FM transmitter to a wired FM modulator
• Connects audio output with POD with FM modulator to car radio
• Designed for use with Audiovox SIRCK3 and XC9 vehicle kits

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• Converts internal wireless FM transmitter to a wired FM modulator
• Connects audio output with POD with FM modulator to car radio
• Designed for use with Audiovox SIRCK3 and XC9 vehicle kits

Crimestopper LP-FRAME-BLK

License Plate Frame for CAM-300 and CAM-400 Backup Camera (Black)

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License Plate Frame for CAM-300 and CAM-400 Backup Camera (Black)

• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• Powder coated black metal finish
• Hidden wiring for easy installation

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-33% $35.99

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• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• Powder coated black metal finish
• Hidden wiring for easy installation

PAC BB-4PR (Orange)

Pair of 4" Bass Blockers, Blocks 0-1.2Khz at 4 ohms and 0-600hz at 8 ohms

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Pair of 4" Bass Blockers, Blocks 0-1.2Khz at 4 ohms and 0-600hz at 8 ohms

&bull Pair of Bass Blockers For 4" Speakers
• Blocks 0-1200 Hz @ 4 Ohm
• Blocks 0-600 Hz @ 8 Ohm
• Encased in Durable Plastic Casing
• Handles Power up to 50 Watts

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&bull Pair of Bass Blockers For 4" Speakers
• Blocks 0-1200 Hz @ 4 Ohm
• Blocks 0-600 Hz @ 8 Ohm
• Encased in Durable Plastic Casing
• Handles Power up to 50 Watts

Metra 82-6902

Universal 1/2" Spacer for 6x9" Speakers

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Universal 1/2" Spacer for 6x9" Speakers

• Universal 1/2" Speaker Spacers
• Fits 6" x 9" Speakers
• OEM Automotive Grade ABS Plastic Construction
• Color: Black

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• Universal 1/2" Speaker Spacers
• Fits 6" x 9" Speakers
• OEM Automotive Grade ABS Plastic Construction
• Color: Black

Belva BBSW127

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

• 7 Meters
• 12 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

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• 7 Meters
• 12 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

NVX NDA12001

2400W Peak (1200W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

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2400W Peak (1200W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

• 500 watts x 1 channel @ 4 ohm
• 850 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Available Offers (2) for NVX NDA12001
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.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
Used from: $111.99
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NVX XIV25

16.4 ft (5 meter) 2-Channel V-Series RCA Audio Interconnect Cable

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16.4 ft (5 meter) 2-Channel V-Series RCA Audio Interconnect Cable

• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

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• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

NVX XCAP10H (TRUE 10 FARAD CAPACITANCE)

True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

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True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

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Available Offers (3) for NVX XCAP10H (TRUE 10 FARAD CAPACITANCE)
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List price $371.99
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$239.99 with coupon | Price details
2026-06-28 23:59:00
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
Used from: $179.99

• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Limited time!
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Universal Siren, works with any alarm system!

• Makes noise even if thief disconnects main car battery
• Key on/off feature to allow manual override

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• Makes noise even if thief disconnects main car battery
• Key on/off feature to allow manual override

NVX - Worth the Envy - Direct to Consumer Car Audio

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    FAQ for Universal-Fit Audio & Electronics in 2016 CT6

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2016 Cadillac CT6?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your CT6.

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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.