Compustar CS7900-AS All-in-One Remote Start and Alarm

Curated from 95 real Reddit conversations

Refreshed on: March 3, 2025

Compustar CS7900-AS All-in-One Remote Start and Alarm

Brand: Compustar
Price: $159
Snoop Score:
7.2
Sentiment
5.6
Popularity
7.3
Technical
7.7

Snoop's Take

The Compustar CS7900-AS All-in-One 2-Way Remote Start and Alarm Bundle is designed to enhance the security and convenience of your vehicle with a range of 3000 feet. This system features a 2-way interactive LCD remote that allows users to lock and start their vehicle while providing visual and audible feedback on command success. Consumer sentiment reflects a mix of appreciation for the system's long-range capabilities and solid performance, with users highlighting that "the range is fantastic and it’s worked great for 3 years so far." Additionally, many find value in the extra security features it offers, stating that "the extra security and convenience it offers is what a modern turbo car should have." However, some users caution about the additional hardware requirements and the limitations of the original fob's range, emphasizing the importance of professional installation for optimal performance. Overall, the Compustar CS7900-AS is highly recommended for those seeking a reliable remote start and alarm system, especially for modern vehicles, given its strong performance feedback despite some noted challenges in installation and range under urban conditions.

Not for you? Check out our other rated Remote Starters

The original fob has terrible range (20ft give or take) but the extra fob is pretty good, up to 400ft.

Positive Feedback

No way to use the app for free and no way to use the fob without the additional hardware.

Negative Feedback
Product
7.2
Compustar CS7900-AS All-in-One Remote Start and Alarm
Winter Warm-Up
2 / 10
Convenient Access
2 / 10
Enhanced Security
10 / 10
Plug-and-Play Installation
2 / 10
See how this compares to all Remote Starters

What it does well!

Key strengths users can’t stop talking about.
Long range fob available
The original fob has terrible range (20ft give or take) but the extra fob is pretty good, up to 400ft.
It also came with a long range dedicated fob.
Solid product performance
Compustar T12 remote starter/security questions Forgive me if this is not the place to ask but was w
The product is solid, but requires skilled installers too.
Minimal battery draw
The unit draws very little power while in wait.
Extra security and convenience for modern cars
The extra security and convenience it offers is what a modern turbo car should have imho.
Reliable long-term performance
I've had a compustar remote starter on my vehicle that has been running flawlessly for 3 years.
Helpful community support for troubleshooting
You are a lifesaver! I really appreciate your advice!
Helpful installation guidance
I highly recommend buying one through a dealer and having them install it.
If you have a Best Buy near you prices are very fair and most of the starters they sell include install and parts.
Good range for remote start
I sell it like this to my clients to Dave em the money too.
Fantastic range for remote start
Remote starter Recommendation (Compustar)? Hi! I know this isn't necessarily Audio System related, b
The range is fantastic and it’s worked great for 3 years so far.
Good option for keyless entry
The Compustar and Viper systems nowdays are mostly remote start systems that have keyless entry options on them.
Software upgrades improve remote start functionality
You can now open the door and have the car keep running.
so now it won't turn off at all if software is updated?
Compustar is an excellent choice
Compustar is an excellent choice, BTW.
New remote can completely replace OEM remote
the new remote can completely replace your OEM remote.

Where it needs some work!

Areas to watch—feedback on possible improvements.
Additional hardware required for better range
No way to use the app for free and no way to use the fob without the additional hardware.
It’s around $400 for the starter plus install so you would be looking around probably $500-$600 all in.
Original fob has limited range
I have an earlier model and my fob range is good enough don't be fooled by this.
Complicated re-pairing for push-to-start
if the fob loses connection to the car the push to start button won’t work (and can’t be easily paired again since it requires the push to start button for pairing).
Dislike for subscription fees for features
Get start x, don’t support auto manufacturers and their “subscription for features” sales model.
I seriously despise the idea of paying a money fee for something the car is already equipped with.
Limited range in urban environments
I have to be like 50 feet away in the above scenarios for this thing to work.
You’re never going to get 3,000 feet of out that remote despite what they advertise it as.
I truly can only get 160ft of real range from where I live.
Distance claims not achievable in real-world conditions
That 3000ft is using almost perfect conditions, they’re probably measuring it in the middle of a desert with nothing between the antenna and remote.
To answer your question, yes anything between you and the car could (and probably will) restrict range.
Complicated troubleshooting process
the fact that the lock and lock don't work tell me its either blown fuses are the the brain took a crop during the Jumpstart.
I’m no expert but it sounds to me like the brain is fried.
Complicated installation process
Many of the 'starters' you see online...don’t come with the wiring or module that physically starts the car.
Lack of plug-and-play options
Wow so no plug and play. Oof okay!
Subscription required for app usage
Starts at $5.99/month, goes up to $11.99.
Potential remote start feature in newer Mazda models
So definitely hold off if you have one of the qualifying models.
Potential quality issues compared to competitors
Yeah, I've heard quality issues with viper.
Remote starter shuts off when door opens
whenever I open the door or trunk the car turns off.
Monthly fee required for app usage
You could always do the one you can do on your phone. Has a monthly fee though.

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Core Power Plays

The specs and strengths that make it shine.
Positive experiences with Drone Mobile app
You can start your car from literally anywhere in the world.
Discussion about system flashing requirements
What's it mean when the installer says the got to flash the system.

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.
Discussion on keeping OEM alarm while adding remote start
I'm gonna say you should probably go talk to whoever you are buying from / having install and figure out what's going to work best for you.

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Installation guidance is often required
If you haven't already, I would confirm the orange wire from the T-Harness is not pinned in the wrong location.
Are you grabbing the wire at the fuse box like it’s telling you or are you going to the keyless receiver?
Did module programming succeed?
I think the people remoting in will be on Windows machines mostly.
Remote start usage requires paying for the app
I think it is crazy that I have a remote starter in my 2020 Outback but can only use it if I pay for the app.
Comparison with other remote start options
I don't to pay Mazda's extension cost for remote App access.
the app based service like Drone Mobile doesn't work with it.
Discussion about installation requirements and costs
I'm struggling to figure out how installation is over 1k.
For the remote start, do you have to leave your car in neutral all the time?
Varied opinions on necessity of remote start in certain climates
I feel like the Midwest winters aren’t as bad as they used to be.
Discussion about installation times varying
Depends a lot on the vehicle and some on the skill of the installer.
I would wager like 1-1.5 hours.
Questions about warranty for installations
Does Best Buy warranty their installs?
Discussion about compatibility with 2017 CX-5
Can’t get installed until January so I have time to change my mind.
Discussion about installation options and experiences
As someone who does about 20 a week now and about 40 in the winter, go compustar. They just work!
Questions about software updates for older models
Do you know where I can look for software updates and how to install them?
Comparison with other remote starter brands
I just had a Viper installed...wonder if there firmware will ever be updated to add the same feature.
Importance of vehicle year, make, and model for compatibility
Vehicle Year Make and Model is quite important to answer your question.

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Discussion about side hustles and income generation
I started counter-gambling this week and honestly can’t believe this is something you can do.
I started counter-gambling this week and honestly can’t believe this is something you can do.

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