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iDatastart ADS-THR-MA3

Remote start T-harness for select 2013-up Mazda, Scion, and Toyota vehicles

Item # 794THRMA3

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Item # 794THRMA3

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$69.99

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About the iDatastart ADS-THR-MA3

Vehicle-specific T-harness for an iDatastart remote starter

iDatastart's ADS-THR-MA3 T-harness connects their iDatastart CMHCXA0 HC remote start module to your select Mazda, Scion, or Toyota vehicle. This T-harness plugs into your vehicle's electrical databus system, allowing you to start and stop the engine remotely, and control some basic factory security functions as well. Some wiring may be required — one to four connections, typically. You can identify your vehicle in our fit guide to see if this harness is compatible. Warranty: limited lifetime.

What's in the box:

  • 26" Main T-harness
  • 29" 12-pin harness
  • 29" One-wire harness
  • Two 8" optional terminal wires (pinned for Molex plug)
MFR #ADS-THR-MA3

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iDatastart ADS-THR-MA3 reviews

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got to have this harness when installing remote start

Crutchfield customer from Poughkeepsie, NY on 5/16/2019

2019 Mazda CX-5

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makes install a snap

Pros: makes install very easy

Cons: none

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0 of 0 found this helpful

No more cold cars.

richard from Yonkers, NY on 2/11/2019

2015 Mazda CX-5

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It's been one week and no issues to report, the remote worked perfectly on the first try. The instructions are geared more towards a professional installation. However the in car setup programming was excellent. Crutchfield Customer Service was awesome. I don't foresee any problems with the remote moving forward.

Pros: No xtra remote needed. Wiring harness was perfect Works as advertised

Cons: Instructions could be better for a DIY

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0 of 0 found this helpful

Awesome product

Thomas from Portsmouth, VA on 12/13/2018

2017 Mazda CX-5

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Having this harness, took a job that could have taken over eight hours down to about thirty minutes. Well made harness and decent instructions. Don't buy your auto start without it.

Pros: Wouldn't install the auto start without it

Cons: None

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0 of 0 found this helpful

T-Harness

Gary from Dayton, OH on 10/12/2018

2015 Mazda CX-5

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Verified employee purchase (What's this?)

Used this T-harness with iDatastart CMHCXA0 HC remote starter. The T-harness is just plug and play under the steering column of my 2015 Mazda CX-5 AWD automatic push start. Only took 15 minutes.

Pros: Easy to install, Youtube videos makes it easier to understand installation.

Cons: None I didn't get directions with this.

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More details on the iDatastart ADS-THR-MA3

Product Research

Features

Overview: The iDatastart THR-MA3 installation harness is designed to simplify the installation of your iDatastart CMHCXA0 remote start module (sold separately) into select 2013 - up Mazda, Fiat, Scion, and Toyota vehicles.

Installation: The iDatastart kit includes various vehicle-specific harnesses designed to provide a direct connection into your compatible vehicle while connecting to the remote start module on the other end, saving you considerable time and effort. The main T-harness interfaces into the ignition system, providing direct connections for the Starter, Ignition, and Accessory wires. Other functions may include Door Lock operation, Parking Light flash, Horn Honk, as well as Door, Hood, and Trunk pin switch activation (individual functions will vary, please see vehicle specific information for details).

Note: The included harnesses will take care of the bulk of required wiring, but some hardwiring into the vehicle's wiring system will still be required.

Vehicle Compatibility Chart: Click here for a list of compatible Mazda, Fiat, Scion, and Toyota vehicles. Or, click here to find out what works with your particular vehicle.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I did not have a T-Harness and was recommended by crutchfield. [ Gary  Sep 30, 2018 ]

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