TruConnex TC4KIT-84B by Metra

8 Gauge Full Spec CCA Amplifier Wiring Kit for Systems up to 450 Watts

List price $64.98

You Save: $41.84 (64.39%)

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Order within 37 hrs 48 mins to ship 1/22

Arrives by Wednesday, Jan. 24 to zip 20147

60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

Bundles with this Product


Save 25% on an 8 Gauge Amp Kit with Purchase!

Need a wiring kit to install your amp? The TruConnex TC4KIT-84B is your answer. For a limited time, when you click "Add Both to Cart", get 25% off the amp kit. You may still need Speaker Wire, so make sure to check that out too!




RE Audio SA 90.4



25% OFF

TruConnex TC4KIT-84B by Metra


Special Price $17.35 ($23.14 if purchased separately)

TruConnex TC4KIT-84B by Metra

(Offer 1 of 1)

Combined Total Price


You Save $5.79

Installation Note: This kit does NOT include Speaker Wire. Your install may or may not require them. Please plan accordingly and browse our Speaker Wire section if you require them.

General Features:

  • 8 gauge Power Amplifier Installation Kit
  • Designed specifically for car audio systems up to 450 watts
  • Premium power and ground wire provides optimal power transfer
  • Twisted RCA audio interconnect cable engineered to the highest quality
  • Terminals are Nickel-plated for excellent signal transfer
  • ANL Fuse holder offers ideal protection
  • True-to-Gauge cables/wires meet or exceed the industry standard of copper required for the gauge size
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Package Includes:

  1. 17 ft. of 8 AWG Red power cable
  2. 3 ft. of 8 AWG Gray ground cable
  3. 16.4 ft. Gray 4-Channel Helical Twist RCA Audio Cables
  4. 17 ft. of Blue remote turn-on wire
  5. In-line mini ANL fuseholder
  6. 60 Amp ANL fuse
  7. Ring Terminals
  8. Ground Terminals
  9. Vinyl Cable Ties
  10. Screws
  11. Spade Terminals
  12. Grommets

Amplifier Kit Specifications

Amp Kit Type
Amplifier installation kit come in two different types: Power or Complete. Power Amp kits are designed to only provide power to the amplifier. Complete kits will provide power and signal to the amplifier. Many of the complete kits will also include speaker wire to connect the amplifier to the subwoofer.
Number of Amplifiers Supported
This is the number of amplifiers that the amplifier kit can support. If you are are going to be powering more than one amplifier, make sure that the installation kit will support them.
Power/Ground Wire Size
The power/ground gauge numbers represents the main wire size of the amplifier kit.

Definitions are as follows:

Gauge (wire) - The diameter of a wire. The higher the number, the thinner the wire. Example: 4 gauge wire has more strands than 10 gauge wire.

AWG (American Wire Gauge) - A standard of the dimensional characteristics of wire used to conduct electrical current or signals. AWG is identical to the Brown and Sharpe (B & S) wire gauge.
8 gauge
Power Wire Length
This is the length of the power wire in feet.
17 feet
Power Wire Color
Ground Wire Length
The length of the ground wire in feet.
3 feet
Ground Wire Color
Speaker Wire Included
If speaker wire is included, the value will be "Yes" and if no wire is included, it will read "No".
Remote Wire Length
This is the length of the remote wire that is included with the item.
17 feet
Interconnect (RCA) Signal Cables Included
Interconnect cables are required for amplifiers which are installed to the "RCA preamp low-level outputs" of a car stereo receiver. If your amplifier has high-level / speaker level inputs, then you do not need to purchase interconnects; however, interconnects offer a much higher quality sound when compared to speaker level inputs.
4 Channel
Fuse Holder
This is the type of fuse holder that is included in the item.
Mini ANL
Distribution Block Included
This means that the kit includes a distribution block in the package. This will assist in the installation of the amplifier kit or any situation where a distribution block is required.
Complies to AWG Standards
Since 1857, The AWG (American Wire Gauge) system has been the standard for measuring the diameter of wire. AWG standard is the measure of bare wire to find true gauge. Companies that do not follow AWG Standards include the thickness of the wire jacket which means the actual wire is not "True to Gauge". For the best performance from your amplifier wiring kit, make sure that the cable complies to the AWG standard.
Wire Material
The material that the wire is made of. Copper & aluminum are the most commonly used materials. OFC - Oxygen Free Copper is the ideal choice for wire material. Copper is a superior electrical conductor, & does not expand or contract with heat. CCA - Copper-Clad Aluminum is a suitable choice for lower powered or budget applications. The power transfer is not on par with OFC, but this material offers significant savings.
CCA (Copper-Clad Aluminum)

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Accessory Tools and Products

Accessories added

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

Your Price $17.99

Black Cable/Zip Ties

50 Pack Nylon 8" Black Cable/Zip Ties

Your Price $5.99

Black Cable/Zip Ties

100 Pack Nylon 8" Black Cable/Zip Ties

Your Price $2.99

Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Browse 2 questions and 5 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Kit seemed complete for my needs
David K on Dec 31, 2017
price was right and I can install when it arrives without shopping around for a kit
Bruce W on Mar 15, 2016
This wiring kit came as a bundle deal with the crunch amp i bought which was awesome! Since its a relatively small amp, the 8 gauge kit should do just fine for me. Just looking for good sound in my truck.
Chad W on Sep 21, 2016
value for connestions
Kevin D on Oct 30, 2015
does the re audio bt900.4 amp have an on/off switch or is it always on. I am guessing that power is direct from battery and system (amp and speakers) will fire up when selection of music is made from bluetooth device (i-phone etc), however, is amp always on in background?
Anthony B on Aug 14, 2015
Best Answer: Hello Anthony ,

The answer to your question falls on the method that the amplifier is/was installed.

If for some reason the "REM" (i.e. Switched Power Source) is/was bypassed, then the amplifier Will remain on at all times. This is NOT recommended.

However, if the remote input is used, be it the traditional means or through a switch, then the amplifier will turn off with the car.
Reply · Report · Rick MStaff on Aug 14, 2015
· Add Answer · I Have This Question Too (1)

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: TruConnex TC4KIT-84B by Metra

Item Added to Cart

TruConnex TC4KIT-84B by Metra

8 Gauge Full Spec CCA Amplifier Wiring Kit for Systems up to 450 Watts


Keep Shopping

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable


Black Cable/Zip Ties

50 Pack Nylon 8" Black Cable/Zip Ties


Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.



Don't see the accessory you're looking for?
View all available accessories for the TruConnex TC4KIT-84B by Metra.