Garage
Shop

See all parts that fit your 2016 1500

Clifford Matrix 50.5X (p/n 5301X)

Responder SST 2-way LCD Pager Car Alarm with 1-Mile Range

Clifford
Shop all Clifford
Product videos
highlight-star-icon

Flagship 2-Way Security System / Remote Start System with Responder SST Technology • 1 mile range for 2-way remote • Clone-Safe® Code-Hopping® • 6 channel remote start/security/keyless entry system • Failsafe® Starter Kill

Learn more about the 5301x

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

5702x thumbnail

Clifford Matrix 50.7X (p/n 5702X)

OUR PRICE: $209.99

View item
NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
AXLOC-CH5 main

Axxess AXLOC-CH5

2-Channel 110W Line Output Converter with Gain Controller for select 2011-2025 vehicles from Ram, Dodge, Jeep with Non-Amplified Systems

10
-10.48%

$93.99

List price $104.99

72-6514 main

Metra 72-6514

Install New Speakers in select 1999-2026 vehicles from Dodge, Ram, Jeep

70
-37.52%

$9.99

List price $15.99

AP4-CH41 main

PAC AP4-CH41 R.2

Amplifier Integration Interface for select 2013-2023 vehicles from Ram, Jeep, Dodge

4
-16.03%

$419.00

List price $499.00

RVCCH-75D main

Crux RVCCH-75D

Rear-View Integration System for select 2013-2017 1500 and 2500 and 3500 (Handle Mount Backup Camera Included)

1
-35.71%

$303.75

List price $472.50

ANC-CH01 main

PAC ANC-CH01

Factory Active Noice Cancelling (ANC) Module Bypass Harness for select 2015-2019 vehicles from Ram, Jeep, Chrysler

4
-55.95%

$25.99

List price $59.00

A201-10V main

Atrend A201-10V

Empty Single 10" Vented Underseat Enclosure for select 2002-2018 1500 and Ram 1500

-25.31%

$238.99

List price $319.99

40-EU55 main

Metra 40-EU55

Antenna Adapter for select 2000-2026 vehicles from Audi, Chevrolet, Volkswagen

49
-13.05%

$19.99

List price $22.99

99-6518B main

Metra 99-6518B Dash Kit

Install a new Single-DIN car stereo in select 2013-2022 vehicles from Ram, Jeep, Chrysler (Matte Black)

5
-39.59%

$28.99

List price $47.99

72-7902 main

Metra 72-7902

Install New Speakers in select 1990-2024 vehicles from Ram, Dodge, Jeep

20
-28.59%

$9.99

List price $13.99

72-6514-12 main

Metra 72-6514-12

Install New Speakers in select 1999-2026 vehicles from Dodge, Ram, Jeep

7
-14.30%

$11.99

List price $13.99

Product Highlights


Flagship 2-Way Security System / Remote Start System with Responder SST Technology • 1 mile range for 2-way remote • Clone-Safe® Code-Hopping® • 6 channel remote start/security/keyless entry system • Failsafe® Starter Kill

Description


The new 1-mile range Matrix 50.5X Responder SST System from Clifford is the most advanced 2-Way Security and Remote Start system in the world! The new Matrix 50.5X employs Spread Spectrum Technology, digital frequency hopping and multiple frequency transmission to assure that even if a frequency is blocked, the signal still will go through. The Responder SST also has dual error correction systems to combat signal data corruption and minimize any signal interference. The end result is an amazing range of up to one full mile!

The interactive display on the Responder 2-way remote confirms all commands (almost instantly) with simple to comprehend icons and text. The remote alerts users to security system triggers by beeping or vibrating when out of audible range of the siren. The Matrix 50.5X will also start your vehicle with the push of a button (when remote start is installed), and you'll get confirmation back that the vehicle has been started.

Key Features:

  • Flagship 2-Way Security System / Remote Start System with Responder SST Technology
  • 6 channel remote start/security/keyless entry system
  • Confirms commands and system triggers on the transceiver LCD screen
  • Clone-Safe® Code-Hopping®
  • Parking Light Flash
  • Failsafe® Starter Kill
  • Anti-Grind
  • Stinger® DoubleGuard® Shock Sensor
  • Revenger® Six-Tone Siren
  • Bright Blue LED Status Indicator
  • Miniature XCRS (Extreme Capacity Relay Satellite)
  • Defroster Output
  • Built-in Turbo Timer
  • Dome Light Supervision
  • Comfort Closure
  • 4 Auxiliary Outputs
  • Horn Honk
  • Includes One 2-way Responder SST Transceiver Remote
  • Matrix 50.5X
  • Part #: 5301X
  • 1-year SonicElectronix.com warranty

Also found as: matrix-505X

Product history:

Clifford MATRIX-50.7X thumbnail
(newest, current model)
Clifford MATRIX-50.5X thumbnail
(previous model, replaced by Clifford Matrix 50.7X (p/n 5702X))
Clifford RSX3.5 thumbnail
(previous model, replaced by Clifford Matrix 50.5X (p/n 5301X))

Loading...
51KRDL7T102 main

Kicker KRDL7T10 (51KRDL7T102)

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge

1
-10.53%

$849.99

List price $949.99

DRQC20AC-TN main

MTX Audio Thunderform DRQC20AC-TN (Charcoal, Amplified)

select 2002-2018 vehicles from Ram, Dodge Amplified 2 10" 4 ohm Vehicle Specific Thunderform Subwoofer Enclosure

2
51KTDL7T102 main

Kicker 51KTDL7T102

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2011-2024 vehicles from Ram

-10.53%

$849.99

List price $949.99

DRQC20C-TN main

MTX Audio Thunderform DRQC20C-TN (Charcoal, Loaded)

Two 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure for select 2002-2018 vehicles from Ram, Dodge

1
SB-D-QDRAMD/10TW1 main

JL Audio Stealthbox® SB-D-QDRAMD/10TW1

Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge

3

$1,699.99

LVE-DOD-RAMQCCG3-D12S main

NVX Loaded BOOST Box - 2002-2018 Ram Quad, Crew Cab - LVE-DOD-RAMQCCG3-D12S

For select 2002-2018 1500 and Ram 1500 Quad and Crew Cab - Dual 12" 800W RMS Loaded BOOST Sealed Truck Enclosure

-18.98%

$349.99

List price $431.99

SB-D-QDRAM/10W3v3 main

JL Audio Stealthbox® SB-D-QDRAM/10W3v3 (Open Box, Like New)

Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge

1

$1,249.99

LVE-DOD-RAMQCCG3-S10S main

NVX Loaded BOOST Box - 2002-2018 Ram Quad, Crew Cab - LVE-DOD-RAMQCCG3-S10S

For select 2002-2018 1500 and Ram 1500 Quad and Crew Cab - Single 10" 350W RMS Loaded BOOST Sealed Truck Enclosure

-20.64%

$199.99

List price $251.99

LVE-DOD-RAMQCCG3-D10S main

NVX Loaded BOOST Box - 2002-2018 Ram Quad, Crew Cab - LVE-DOD-RAMQCCG3-D10S

For select 2002-2018 1500 and Ram 1500 Quad and Crew Cab - Dual 10" 700W RMS Loaded BOOST Sealed Truck Enclosure

-19.12%

$329.99

List price $407.99

51K5RDL7T102 main

Kicker 51K5RDL7T102

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge

-10.53%

$849.99

List price $949.99


Best selling similar products

2103V small

Viper 2103V

• 1-Way Keyless Entry Car Alarm System
• 4-Button Transmitter
• 1/4 mile (1320 feet) range

$119.99

List price $139.99

SP-302 small

Crimestopper SP-302

• 2-Way Paging Remote Car Starter
• 5-Button LCD Transmitter
• 3000 feet of range (0.56 miles)
• Full high speed 2-way data to data

(8)

$99.99

List price $199.95

5108V small

Viper 5108V

• 1-Way Remote Start, Keyless Entry and Car Alarm System
• Includes (2) 4-button LED remote control transmitter
• 1/4 mile (1320 ft) range
• Antenna with integrated valet switch and LED

$209.99

List price $249.99

OL-RS-CH5 small

Omega OL-RS-CH5

• Standalone Remote Start Solution System
• Optional add on RF kits available and smartphone compatibility
• Custom plug-and-play T-Harness included
• Control door lock and unlock, remote start and more using your Smartphone
• Compatible with select 2005-2018 vehicles from Dodge, Jeep, Chrysler

(23)

$93.99

List price $199.99

5908V small

Viper 5908V

• 2-Way Remote Start, Keyless Entry and Car Alarm System
• Includes (1) 2-way LCD transmitter and (1) 1-way sidekick remote control transmitter
• 1 mile range
• Antenna with integrated valet switch and LED

(106)

$469.99

List price $529.99

D9858V small

Viper D9858V

• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

$209.99

List price $249.99

D9957V small

Viper D9957V

• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

$299.99

List price $399.99

5308L small

Avital 5308L

• 2-Way Remote Start Keyless Entry Car Alarm System
• Includes (1) 2-way LCD transmitter and (1) 1-way LED transmitter
• 1 mile (5280 feet) range
• Includes internal antenna and USB port
• Programming and command buttons

$299.99

List price $349.99

VSM550 small

VIPER VSM550

• 2-Way Remote Start, Keyless Entry and Car Alarm Smartphone Module
• Add-on system for your Viper SmartStart-compatible car security systems
• GPS and LTE cellular technology for unlimited range
• Supports multiple vehicles

$179.99

List price $199.99

OL-RS-CH4 small

Omega OL-RS-CH4

• Standalone Remote Start Solution System
• Optional add on RF kits available and smartphone compatibility
• Custom plug-and-play T-Harness included
• Control door lock and unlock, remote start and more using your Smartphone
• Compatible with select 2008-2016 vehicles from Dodge, Ram, Chrysler

(21)

$149.99

List price $199.99

Specifications & Details


General Features
Remote Start
Yes
Keyless Entry
Yes
2-way Paging
with 2-way paging
Number of Remotes
1
Number of Buttons on Primary Remote
4
LED/Display Color
Black
Number of Vehicles Supported
1
Number of Auxiliary Outputs
4
PC Programmable
No
Convenient Features
Panic Mode
Yes
Trunk Release
Yes
Alarm Features
Paging Range
1 Mile
Number of Car Alarm Channels
6
Siren
Yes
Shock Sensor
Dual Zone Shock Sensor
Two-Way Paging Features
Transmitter Alert
Audible
Vibration
Interior Thermometer
No
Remote Start Features
Cold Start Timer
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

MATRIX-50.5X

Weight:

2.00lbs

Internal SKU:

5301x

Internal Product ID:

8297

Product and How-to Videos


Customer Ratings & Reviews


Clifford Matrix 50.5X (p/n 5301X) thumbnail image

5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
4.5
Value
4.4
Features
4.4
Design
4.2
Usability
4.2

Customer Reviews

Sort by:

Loading...

Worth the price

The following review is for a previous version (RSX3.5).

for the price and the features it is more than worth it plus it is user friendly.

By Criptonite on April 7, 2009

24 found this helpful


FYI

The following review is for a previous version (RSX3.5).

Pros: this is a decent alarm, I’m using it in a basic configuration because I don’t have no power locks / windows etc. It also has a pretty good (unobstructed line of site) range of about 2 to 2.5block radius.
The remote seems to work great to. The Remote start works great, it usually starts my car in the 1st attempt. It doesn’t hold the starter on too long either, just enough to get it started (with out causing any damage)

Cons: this is not the cheapest unit, it only came with one transmitter, reasonable priced replacement transmitters are hard to find (when they 1st came out). DEI wants so much for a replacement 2 way transmitter. That it’s the same price as buying the alarm all over again from this site. The remote doesn’t have a quick one touch button for back light or vibrate mode. And the 2 way transmitter that sounds when you’re car is going off isn’t loud. It’s just beeps, when another brand I was using had a loud baby siren sound

By Dominic on October 3, 2006

23 found this helpful


Clifford Rsx3.5 Alarm System

The following review is for a previous version (RSX3.5).

This system i just order because my friend have one. It very easy to use and installation is a breeze if you bring it to a shop. The range of the response lcd is awesome. That the reason why i baught one. This is one of the best alarm in the market and don't take my word for it, try it yourself.

By Thang on February 1, 2006

23 found this helpful


Clifford Matrix 50.5X

Excellent Product, but only one remote supplied, additional remote is expensive. Battery for remote is easy to find (type AAA) and usually lasts about a month with moderate usage.

Installation is a real PAIN so I would recommend a very good friend who is an automotive electrician or be ready to shell out a fair amount of dough for a professional.... But trust me, you can damage your car if you don't know EXACTLY what you are doing when you install.

By Mando on January 14, 2009

17 found this helpful


Clifford Matrix 50.5x rocks

I was going to get the viper 5900 but it was back ordered so I ordered this alarm instead. Im sure glad the viper was back ordered :)

This is the same alarm system as the 5900 except it comes with a cool carbon fiber covered remote and the viper has a cheesy blue remote. Otherwise they are identical. The alarm works great. Includes a shock sensor for when people mess with your ride and the install was very easy. I haven't tried long range testing with it but I was able to receive signals from my truck from anywhere inside walmart while shopping which surprised me since the cellphone doesn't work inside there much.

Excellent alarm, thanks again sonic electronix for a wonderful shopping experience!!!

By James on July 10, 2008

17 found this helpful


best out there

If you are looking for a straight forward no-nonsense remote auto start, then this is the one for you. while it is not feature rich with a lot of bells and whistles, it is VERY reliable. If properly installed you will never have any problems with this unit. the range on the remote is about 1000 feet in the areas i use it in. I was expecting more. but then there are few time I am more than that away from my car. And most likely it is an antenna location issue and not a unit or remote issue. The price on this unit is unreal too.

By Stephen on September 24, 2008

15 found this helpful




7701V main

Viper 7701V (Requires Programming)

• Replacement Viper Remote / LCD Pager For Select Viper Alarms

(16)

$149.99

List price $179.99


K350CRM small

AKG K350CRM - Chrome

Inner-Ear Earbuds/Earphones Headset with 3-Button In Line Microphone & Remote for iPod/iPhone/iPad

(1)

$44.99

List price $99.95

K350AMA small

AKG K350AMA - Arctic Mauve

Inner-Ear Earbuds/Earphones Headset with 3-Button In Line Microphone & Remote for iPod/iPhone/iPad

$39.99

List price $99.95

MPC-P300-8BL-25 small

Monster Cable MPC P300 8BL-25

25 Ft of 8 Gauge Monster 300 PowerFlex Power & Ground Cable

$35.99

List price $64.99

DT 1770 PRO Like New small

Beyerdynamic DT 1770 PRO (DT1770PRO) Like New

Closed Studio Reference Headphones for Mixing, Mastering, Monitoring and Recording

(4)

$411.75

List price $599.00

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2016 Ram 1500

2020 Ford Fusion

2018 Ram Promaster 1500

2025 Chevrolet Express 3500

2010 Mitsubishi Galant

2016 Kia Forte

2005 GMC C4500

2000 Saturn SW2

1986 Mazda 626

2020 MINI Clubman

Vehicle
Store
Delete

2012 Harley Davidson FLSTC Heritage Softail Classic

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.