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ScyTek ASTRA-300RS

Complete Remote Engine Start and Keyless Entry System with Two 4-Button Remote Controls


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ScyTek ASTRA-300RS

Complete Remote Engine Start and Keyless Entry System with Two 4-Button Remote Controls


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A must have for (starter kill, door locks, remote start and more)



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ASTRA-300RS Features:

  • Complete Remote Engine Start and Keyless Entry System
  • Supplied with two 4-button remote transmitters
  • Remote unlocking for vehicles with automatic locks
  • Visual Car Locator Mode: Flashes parking lights for easy location of your vehicle in crowded parking lots
  • Valet Mode: Temporarily disables the remote start system so the vehicle can be serviced
  • Quick Stop: Allows you to exit the vehicle for short durations and leave it running
  • Automatic Start Mode: Allows the vehicle to automatically start every one or two hours and run for a preset duration
  • Ignition Door Lock/Unlock: For vehicles with automatic door locks, automatically locks the doors when the ignition is on and unlocks then when it is off
  • Trunk Release
  • Data Port
  • Control Module Dimensions: 4-1/4"L x 3"W x 1-1/4"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Main Harness:
  • Red: +12V Battery Input #3
  • Green/White: Brake Input (+)
  • Brown/White: Horn Output (-) 500mA
  • White: Parking Light Output (+/- Built-in relay)
  • White/Black: Hood/Trunk Input (-)
  • Blue/Orange: Remote Start Output (-) when running
  • Black: Ground
  • Black/Gray: Tachometer Input
Remote Start Harness:
  • Violet: Starter Output
  • Yellow: Ignition 1 Output
  • Orange: Accessory Output
  • Brown: Ignition 2 Output/ACC/Starter2
  • Red: +12V Battery Input #1 25Amp
  • Red: +12V Battery Input #2 25Amp
Door Interface Harness:
  • Green: Lock Output (-) 500mA
  • Blue: Unlock Output (-) 500mA

General Features

Security System Type
This indicates whether the product is a security car alarm product, remote start module, or a combo unit that offers security with remote start features.

Security: This means that the car alarm system is just that. No bells and whistles, just a car alarm system.

Remote Start: when installed, this allows the user to start a vehicle from a remote location. Remote start modules and security with remote start alarms often require an additional vehicle specific bypass module to complete installation.

Security with Remote Start: This means that the system incorporates both features listed above.

Keyless Entry with Remote Start
Car Alarm
If "Yes", the system will have alarm security features to help prevent vehicle theft and tampering. Remote start modules without alarm features will have "No" for this value.
Keyless Entry
Keyless entry allows you to remotely lock, unlock, and open the trunk of a vehicle if that is equipped with power door lock motors (actuators) and power truck motor (solenoid). Door lock controls via the remote are found on nearly all of today's car alarms.
2-way Paging
Alarms with 2-way paging inform the user via remote vibrating/audible/visual alert when the alarm is triggered. The pager must be within range to receive the transmitted signal.
Number of Remotes
The number of remotes included with the alarm system purchase.
Number of Buttons on Primary Remote
The amount of buttons on the Primary Remote generally equals the number of functions that you can use your remote for. Some remotes have auxiliary buttons which can perform more than one task per button.
Main Transmitter Type
LCD and OLED transmitters display various screen savers, warnings, alerts and other features on the face of the remote, rather than first generation button-only transmitters. They provide more information typically and other features.
Button(s)-only with LED Lights
Sidekick Remote Transmitter Type
Some car alarms and remote start systems come with more than 1 transmitter, which is referred to as the "sidekick" transmitter. Most LCD/OLED systems come with a button-only sidekick transmitter, while select units come with an additional LCD/OLED transmitter.
LED/Display Color
The color of the LED indicator(s) on various items such as button-only car alarm transmitters, various chargers, cell phone accessories and other products.

For OLED or LCD car alarm remotes/transmitters the display color refers to the color(s) of the screen.
Number of Vehicles Supported
Some higher end car alarm systems can support multiple vehicles. This is the number of vehicles that the works with.
Number of Auxiliary Outputs
The number of auxilary outputs that the car alarm system supports. These outputs are left over from the total number of channels. They can be used to add on other options or additional features to a vehicle.
PC Programmable
Custom, advanced programming options through one or more of the following: PC, Pocket PC, PALM Pilot, Valet SW or Remote Transmitter allows for advanced controls of your alarm's functions.
Smartphone Compatibility
These are the types of smartphone systems that the car alarm system is compatible with.
GPS Tracking
These car alarms enable a user to track the position of the vehicle using GPS satellites.
Professional Installation Recommended
This will indicate whether or not we recommend going to a professional installer for this item. Some items have complex installations that should only be done be professional certified installers.

Convenient Features

Panic Mode
Panic mode allow the user to be able to set off the alarm from the remote.
Trunk Release
The trunk release option allows for integration and control of the trunk latch. Additional parts may be required.
Valet Mode
Valet mode is a car alarm setting that adjusts system to less sensitive settings when allowing a valet to park your car and similar settings.

Remote Start Features

Cold Start Timer
Great for those on a set schedule who need their vehicle to warm up at a specific time every morning for example.
Turbo Timer
Some remote start systems have turbo timer feature which allows the vehicle to run for a specified amount of time after exiting vehicle. In turbocharged vehicles this prevents hot oil in the engine from choking up in the lines. Hard driving can raise engine oil temperatures to dangerously high levels. Proper cool down is essential for a healthy turbo and engine.
Compatible with Diesel Engines
This means that the remote start system will work with diesel engines.
Engine Start Intervals
Some remote start systems offer feature to protect your engine. The engine start interval feature will start the car at particular time intervals or when the engine has reached a certain temperature. This feature prevents the engine block from freezing.
Compatible with Manual Transmissions
This means that the remote start car alarm is compatible with manual transmissions. Please see the item description, manual, or your professional installer for more information as to how this feature will work with your specific vehicle.

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
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1 Star

Average Attribution Rating



Awesom Value - ScyTek ASTRA-300RS

February 27, 2014

Highly recommended for the price and level of customer service that sonic always provides me.

6 of 8 found this helpful

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Browse 4 questions and 4 answers
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Why did you choose this?
Sonic Electronix Store
good alarm
Alexavier D on Jan 23, 2015
my 2003 Tahoe seems to have lost power since installation of the ASTRA 300RS. The mechanic that installed it last week is not too friendly and I am afraid to take it back. What could he have done to it?
A shopper on Nov 5, 2014
Best Answer: Sounds like he may have disconnected the main harness or hooking up the 12+ wire maybe didn't attach it all the way back together u have any dash lights or anything when u turn key on ?? Key chimes?? And check to see if positive and ground connections on battery are hooked up ..a Remote starter shouldn't do that to a vehicle
Reply · Report · mac m on Nov 5, 2014
· Add Answer · I Have This Question Too (0)
Do I need a bypass module for my 2000 lincoln ls?
triniothello on Sep 19, 2014
Best Answer: Hello Jemal,

Yes. Your vehicle calls for a bypass, preferably the Omega OL-MDB-ALL .

Reply · Report · Customer SStaff on Sep 22, 2014
· Add Answer · I Have This Question Too (0)
will ScyTek ASTRA-300RS remote start-up work for a 2004 Chrysler Pt Crusier? I would like to stay out of the cold as much as possible and I just bought this car.
A shopper on Sep 12, 2014
Best Answer: yes
Reply · Report · Omkar R on Nov 8, 2015
· Add Answer · I Have This Question Too (0)

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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: ScyTek ASTRA-300RS