Alpine MRP M350 Wiring Diagram: A Comprehensive Guide

Are you looking for a wiring diagram for your Alpine MRP M350 amplifier? You’ve come to the right place. In this guide, we’ll walk you through the process of wiring your amplifier to your car’s stereo system.

What is the Alpine MRP M350 Amplifier?

The Alpine MRP M350 is a compact amplifier that is designed to power a car’s stereo system. This amplifier is known for its high-quality sound and powerful performance, making it a popular choice for car enthusiasts.

Specifications of Alpine MRP M350 Amplifier

Specification Value
Power Output 200 watts RMS x 1 at 4 ohms or 350 watts RMS x 1 at 2 ohms
Signal-to-Noise Ratio >100 dB
Frequency Response 10 Hz – 400 Hz (+0, -1dB)
Dimensions 9-7/8″ W x 2-1/2″ H x 7-1/2″ L

As you can see from the specifications, the Alpine MRP M350 amplifier is a powerful and reliable choice for car audio systems. Now, let’s move on to the wiring diagram.

Wiring the Alpine MRP M350 Amplifier

What You Will Need

Before you start wiring your amplifier, you will need a few tools and materials. Here’s a list of what you’ll need:

  • Alpine MRP M350 Amplifier
  • Stereo System with RCA Outputs
  • Stereo Wiring Harness
  • Power Wire
  • Ground Wire
  • Remote Wire
  • Fuse and Fuse Holder
  • Speaker Wire

Step-by-Step Wiring Process

Now that you have all of the necessary tools and materials, it’s time to start wiring your Alpine MRP M350 amplifier. Here’s a step-by-step guide:

Step 1: Disconnect the Battery

Before you begin any wiring work, disconnect the negative terminal of your car’s battery to prevent any electrical accidents.

Step 2: Install the Fuse Holder

Locate an appropriate location to mount your fuse holder within 18 inches of the battery. Install the fuse holder and insert a fuse to protect your amplifier.

Step 3: Connect Power Wire to Battery

Connect the power wire from the amplifier’s positive terminal to the battery’s positive terminal. Be sure to use appropriate connectors and wire size for your installation.

Step 4: Ground the Amplifier

Connect a ground wire from the amplifier’s negative terminal to an appropriate location on the vehicle’s body. Be sure to clean the mounting surface and use a bolt that is securely fastened to the vehicle’s chassis.

Step 5: Connect the Remote Wire

Connect the remote wire from the amplifier’s remote terminal to the stereo’s remote output. This wire will turn the amplifier on and off with the stereo.

Step 6: Connect RCA Cables

Connect the RCA cables from the stereo’s RCA outputs to the amplifier’s RCA inputs. This will send the stereo’s audio signal to the amplifier.

Step 7: Connect the Speakers

Connect the speakers to the amplifier’s speaker terminals. Be sure to observe proper polarity.


Q: What is the best gauge wire to use for the power and ground wires?

A: We recommend using 4-gauge wire for the power and ground wires. This will ensure that your amplifier is getting enough power to perform at its best.

Q: How do I know if my amplifier is getting enough power?

A: Check your amplifier’s specifications to determine the recommended power requirements. You can also use a voltmeter to measure the voltage at the amplifier’s power and ground terminals. The voltage should be between 12-14 volts.

Q: How do I set the gain on my amplifier?

A: Start by turning the gain all the way down. Then, play a song with a consistent bass line and increase the gain until the sound is slightly distorted. Back the gain off until the distortion disappears and you’re good to go.

Q: Why is my amplifier overheating?

A: Overheating can be caused by a number of factors, including improper wiring, insufficient cooling, or a problem with the amplifier itself. Check your wiring and make sure your amplifier is getting enough airflow. If the problem persists, consider taking your amplifier to a professional for repair.

Q: Can I bridge my Alpine MRP M350 amplifier?

A: Yes, the Alpine MRP M350 amplifier can be bridged to power a single subwoofer. Check your amplifier’s manual for instructions on how to bridge it.


Wiring your Alpine MRP M350 amplifier is a straightforward process that can greatly enhance your car’s audio system. Follow our step-by-step guide and use our wiring diagram to ensure a successful installation. If you have any questions or concerns, consult your amplifier’s manual or a professional audio installer. Enjoy your upgraded audio system!