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Adding SmartStart To Existing Avital 4103LX Remote Starter?

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Member - Posts: 21
Member spacespace
Joined: November 30, 2012
Posted: January 23, 2023 at 8:43 AM / IP Logged Link to Post Post Reply Quote jonnythan
I've got a 2009 Impreza with an Avital 4103lx remote starter that I installed myself many years ago. I'm interested in adding an app-controlled module to it.
I checked the manual and the unit has a red 4 pin "D2D" interface. Is it possible to connect a SmartStart through this? Or might it be possible to easily swap the 4103 with another unit like the 4105 that is compatible?
Gold - Posts: 1,098
Gold spacespace
Joined: July 08, 2002
Location: United States
Posted: January 28, 2023 at 1:10 PM / IP Logged Link to Post Post Reply Quote cpgoose
Just curious if you've gotten anywhere with this. What is the D2D interface port for? Is the SmartStart also a DEI product like Avital?
Member - Posts: 40
Member spacespace
Joined: June 21, 2012
Location: Ontario, Canada
Posted: February 13, 2023 at 11:59 PM / IP Logged Link to Post Post Reply Quote jsnali13
It is fairly simple. You just need to know if your system is digital or analog.
I just added one to my ds4. Its digital so just had to plug in the d2d and ground the smartstart
Yours maybe digital so you can try just the d2d and ground the grey wire on the smartstart.
If analog, you may have to do the aditional wiring and ground the white wire on the smart start
Smartstart is DEI so should work for all DEI related products i would think

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