CS905-AS

Name: CS905-AS Security + Remote Start
Brand: Compustar
SKU: CS905-AS
Rating: 4.6363636363636 (11 reviews)

All-in-One Remote Start + Car Alarm Bundle

4.6 (20 Reviews)

Find a Dealer

CS905-AS

All-in-One Remote Start + Car Alarm Bundle

4.6 (20 Reviews)

Remote Start
Security
1500′ Max Range

Model:

CS905-AS

Brand:

Compustar

Available in:

North America

GTIN/UPC:

829543013588

Find a Dealer Contact an Authorized Compustar Retailer near you today to request pricing and confirm compatibility with your vehicle.

Easy-to-Use Remote Start

On cold winter mornings or blistering hot summer days, hold the remote start button on the remotes included in this kit to start your engine. Give it 10 minutes and your vehicle will be perfectly heated/cooled.

Peace of Mind

Whenever you walk away from your car, arm your Compustar CS905-AS remote start and security system. While armed, the system activates impact and intrusion sensors that will trigger the alarm siren if a violation occurs.

Intelligent Security Sensors

The CS905-AS is capable of adding door, hood, trunk, and impact sensors all around your vehicle to detect intrusions and hit-and-runs. Consult with your local authorized dealer to customize your Compustar security system to maximize your vehicle's safety.

The Loudest Siren

The car alarm siren included in the CS905-AS features a piezo speaker that gets as loud as 105+dB; capable of scaring away intruders and alerting those nearby.

What's Included

Included with CS905-AS

(2) 900R

Two 1-Way, 4-Button Remotes
ANT-AP

1-Way AP Antenna
CM900-AS

Remote Start & Security Control Module
E-LOCK Relay

Engine Starter-Kill Relay
Alarm Siren

105+db Alarm Siren
Shock Sensor

Dual-Stage Shock Sensor
Theft-Deterrent LED

Blue Security LED

Reviews

4.6

20 Reviews

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Showing most recent reviews

Dodge Charger ScatPack Secured Against Theft

I requested information on a car anti theft alarm system for my Dodge Charger. The Geek Squad installation tech explained to me what I needed and ordered it for me. The same Geek Squad tech scheduled my installation and took care of the installation in a flawless and professional manner.

Besttvever | 03/03/2026 | Verified Review

Alarm Kit

This product was purchased out of necessity due to someone attempting to steal my car. I own a Kia Soul. The self starter and alarm system are a Godsend to me and my family because without my car, I am unable to work. I am thankful for Best Buy and the team who installed the equipment, I highly recommend them for all of my electronic related needs and customer service!

Anonymous | Kia SOul | 03/03/2026 | Verified Review

No instructions

Do your research! This is a great product, unfortunately they don't offer details installation instructions like other brands.
Compustar is a professional installation brand not designed for DIY.
If you buy this you'll also need the programmer to adjust settings or have to go to an installer for these adjustments.
I spent twice as long figuring out how to wire this unit into my truck as I did actually installing it. Luckily I found a good forum with an article from a guy who documented the wiring.
Would have given it 5 stars if they had instructions.

AC | 02/04/2026

You have to have a professional installer flash it buyers beware

I couldn't install it because it has to be flashed by a professional installer who could possibly charge you up to $300 just to flash it. I can't speak for the actual system because I returned it

Dre D | 01/01/2026

Winter weather

Great product love being able to start my car during winter

Josh123 | Toyota Tundra 2024 | 10/09/2025 | Verified Review

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CS905-AS

All-in-One Remote Start + Car Alarm Bundle

CS905-AS