1. Introducció
This manual provides comprehensive instructions for the installation, operation, and maintenance of the RAPTOR by METRA Electronics Bulk Series 4 Gauge AMP KIT, model R2AK4. This kit is designed to provide the necessary wiring and components for connecting an aftermarket amplifier to your vehicle's audio system. Please read this manual thoroughly before beginning installation to ensure proper setup and safe operation.

Figura 1.1: The RAPTOR R2AK4 AMP KIT in its retail packaging, showcasinels components principals.
2. Informació de seguretat
Always observe the following safety precautions during installation and use:
- Disconnect the vehicle's negative battery terminal before starting any electrical work to prevent short circuits and electrical shock.
- Utilitzeu l'equip de seguretat adequat, incloent protecció ocular i guants.
- Ensure all connections are secure and properly insulated to prevent shorts and potential fire hazards.
- Col·loqueu els cables allunyats de les peces mòbils, les vores afilades i les fonts de calor.
- Use the correct gauge wire for your amplifier's power requirements. This kit provides 4-gauge wire, suitable for systems up to 1100W.
- Install the fuse holder as close to the battery as possible (within 18 inches) to protect the power wire from short circuits.
- Si no esteu segurs de cap part del procés d'instal·lació, consulteu un instal·lador professional qualificat d'àudio per a cotxes.
3. Contingut del paquet
Verify that all components listed below are present in your RAPTOR R2AK4 AMP KIT:
- 17 ft. CCA Power Wire (4 Gauge)
- 3 ft. CCA Ground Wire (4 Gauge)
- 17 ft. RCA Cable
- Cable d'altaveus de 20 peus
- (1) ANL Fuse Holder with 100 Amp Fusible
- Assorted Hardware (e.g., ring terminals, spade terminals, cable ties, grommet)

Figura 3.1: All components of the RAPTOR R2AK4 AMP KIT, including power wire, ground wire, RCA cable, speaker wire, fuse holder, and various hardware pieces, laid out for inspection.

Figura 3.2: Primer pla view of the assorted hardware provided with the kit, such as ring terminals, spade terminals, and cable ties, essential for secure connections.
4. Configuració i instal·lació
This section outlines the general steps for installing your amplifier wiring kit. Specific vehicle layouts may vary. Professional installation is recommended if you are unfamiliar with car audio wiring.
4.1. Planificació i Preparació
- Desconnecta la bateria: Always disconnect the negative terminal of your vehicle's battery before starting any work.
- Determinar AmpUbicació del lifier: Choose a secure, well-ventilated location for your amplifier, typically in the trunk or under a seat.
- Plan Wire Routing: Plan the path for all wires (power, ground, RCA, speaker) to avoid interference and ensure sufficient length. Route power cables separately from signal cables (RCA) to minimize noise.
4.2. Power Wire Installation
- Route Power Wire: Run the 17 ft. 4-gauge power wire from the battery location through the firewall into the vehicle's interior. Use the provided grommet to protect the wire where it passes through metal.
- Instal·leu el portafusibles: Cut the power wire approximately 12-18 inches from the battery terminal. Install the ANL fuse holder in this section. Ensure the 100 Amp fuse is inserted correctly.
- Connectar a la bateria: Attach a ring terminal to the end of the power wire connected to the fuse holder and secure it to the positive (+) terminal of the battery.
- Connecta't a Ampmés viu: Route the power wire from the fuse holder to the amplifier's power input terminal. Secure with an appropriate terminal (not included in this kit, typically supplied with the amplifier or purchased separately).
4.3. Ground Wire Installation
- Prepare Ground Point: Find a clean, unpainted metal surface on the vehicle's chassis near the amplifier. Scrape away any paint or rust to ensure a good electrical connection.
- Connecteu el cable de terra: Attach a ring terminal to one end of the 3 ft. 4-gauge ground wire and secure it to the prepared chassis ground point using a self-tapping screw or existing bolt.
- Connecta't a Ampmés viu: Route the other end of the ground wire to the amplifier's ground input terminal. Secure with an appropriate terminal. Keep the ground wire as short as possible, ideally less than 3 feet.
4.4. RCA Cable Installation
- Route RCA Cable: Run the 17 ft. RCA cable from your head unit (stereo) to the amplifier. Avoid routing it alongside the power wire to prevent noise interference. Use the opposite side of the vehicle if possible.
- Connecteu-vos a la unitat principal: Plug the RCA connectors into the pre-amp sortides de la unitat principal.
- Connecta't a Ampmés viu: Plug the other end of the RCA connectors into the corresponding inputs on your ampmés viu.
4.5. Speaker Wire Installation
- Route Speaker Wire: Run the 20 ft. speaker wire from the amplifier's speaker outputs to your speakers. Ensure correct polarity (+ to + and - to -).
- Connecta't a Ampmés viu: Connecteu els cables dels altaveus al amplifier's speaker output terminals.
- Connect to Speakers: Connect the other ends of the speaker wires to your speakers.
4.6. Passos finals
- Cables segurs: Use the provided cable ties to secure all wires, preventing them from moving or getting damaged.
- Torneu a connectar la bateria: Once all connections are made and secured, reconnect the negative battery terminal.
- Sistema de prova: Turn on your vehicle and audio system to test the amplifier and speakers. Adjust ampajustos del lifier segons sigui necessari.
5. Instruccions de funcionament
The RAPTOR R2AK4 AMP KIT provides the essential wiring infrastructure for your car audio amplifier. Once installed, the kit itself does not require "operation" in the traditional sense. Its function is to reliably transmit power and audio signals to and from your amplifier. The operation of your car audio system, including volume control, source selection, and amplifier settings, will be managed through your head unit and the ampcontrols del lificador.
Ensure that all connections remain secure and free from damage to maintain optimal performance of your audio system.
6. Manteniment
Minimal maintenance is required for the RAPTOR R2AK4 AMP KIT. Regular checks can help ensure longevity and performance:
- Inspeccionar connexions: Periodically check all wiring connections (battery, fuse holder, ground, amplifier terminals) to ensure they are tight and free from corrosion.
- Comproveu el fusible: Si el teu amplifier stops receiving power, inspect the 100 Amp fuse in the ANL fuse holder. Replace it with a fuse of the exact same rating if it is blown. Never use a fuse with a higher rating.
- Integritat del cable: Visually inspect cables for any signs of wear, fraying, or damage, especially where they pass through grommets or near sharp edges. Repair or replace damaged cables immediately.
- Neteja: Mantingueu la zona al voltant de amplifier and wiring free from dust and debris.
7. Solució De Problemes
If you encounter issues with your car audio system after installing the AMP KIT, consider the following troubleshooting steps:
| Problema | Causa possible | Solució |
|---|---|---|
| Ampel lifier no s'encén | Blown fuse in fuse holder. Connexió d'alimentació o de terra fluixa. Remote turn-on wire not connected or faulty. | Comproveu i substituïu 100 Amp fusible. Verifiqueu que totes les connexions d'alimentació i de terra estiguin ben fixades. Ensure remote wire from head unit is connected to ampmés viu. |
| No hi ha so dels altaveus | Loose RCA connections. Incorrect speaker wiring polarity. AmpEl guany del lificador està massa baix. | Check RCA cables at both head unit and ampmés viu. Verifiqueu les connexions i la polaritat dels cables de l'altaveu. Ajustar amplifier gain settings (refer to amplifier manual). |
| Engine noise/whining sound | Power and RCA cables routed too close together. Mala connexió a terra. | Reroute power and RCA cables on opposite sides of the vehicle. Assegureu-vos que la connexió a terra estigui neta i segura. |
| Intermittent power/sound | Connexions fluixes. Cablejat danyat. | Inspect all connections for tightness. Check all wires for damage and replace if necessary. |
If troubleshooting steps do not resolve the issue, contact a qualified car audio technician or RAPTOR customer support.
8. Especificacions
- Número de model: R2AK4
- Cable d'alimentació: 17 ft., 4 Gauge, CCA (Copper Clad Aluminum)
- Cable de terra: 3 ft., 4 Gauge, CCA (Copper Clad Aluminum)
- Cable RCA: 17 peus.
- Cable de l'altaveu: 20 peus.
- Portafusibles: ANL Type
- Classificació de fusibles: 100 Amp
- Sistemes compatibles: Fins a 1100 W
- Dimensions del producte: 11.61 x 8.27 x 2.76 polzades
- Pes del producte: 2.5 lliures
- Fabricant: Metra Electronics
9. Garantia i Suport
For specific warranty information regarding your RAPTOR by METRA Electronics Bulk Series 4 Gauge AMP KIT, please refer to the documentation included with your purchase or visit the official Metra Electronics weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
For technical support or further assistance, please contact Metra Electronics customer service. Contact details can typically be found on their official weblloc o embalatge del producte.





