Want to change from A329S 3ch to A329T 3ch - is this possible?

[Finnegan]

My current setup and has been working well since August 2025 is just below my avatar,
the A329S with interior Cabin cam and Rear cam. All firmware is up-to-date, and the
APP software on my phone is also up-to-date.

What I want to know is this - can I replace the cabin cam with Viofo's Telephoto cam?
I believe I will at least have to change the A329S firmware to A329T. I'm curious as to
whether anyone has tried this, or knows for certain whether or not it can be done.
I really think I will find the Telephoto more useful than the Cabin cam. Thanks!

@viofo
@VIOFO-Support
.

 

[Chuck McCoy]

I'm curious as to
whether anyone has tried this, or knows for certain whether or not it can be done.

Yes.
If you had unlimited budget I would replace REAR camera with telephoto to run A329TC, (Front / Interior / Telephoto).
Interior camera is going to come in handy for traffic stops, side view coverage, and parking mode.
And get a single channel for rear like A119M Pro.
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
-Chuck

Video by @jsmith

 

[Finnegan]

@Chuck McCoy

"IF" 😎

"If" Viofo would manufacture a 4ch system I wouldn't have to choose!
I saw the utility of the Interior cam so I bought it. I can also see the utility
of the Telephoto. So now I'm looking to see if I can make the change without
buying a whole new system.

So, can I run Main, Rear, and Telephoto on what was purchased as a A329S cam?
Thinking I need to buy a Telephoto cam and complete a firmware change.
Will the Interior cam cable work with the Telephoto cam?

 

[Chuck McCoy]

"If" Viofo would manufacture a 4ch system I wouldn't have to choose!

A159 5CH BOX

So, can I run Main, Rear, and Telephoto on what was purchased as a A329S cam?

Will the Interior cam cable work with the Telephoto cam?

Yes.
I would order it with 0.15M Cable.
Also, don't forget the CPL Filter.
VIOFO RTC420 Telephoto

 

[Chuck McCoy]

"If" Viofo would manufacture a 4ch system I wouldn't have to choose!

Just run 6CH with (2) A329S 3CH Units 🤣 🤑
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

 

[Finnegan]

🤣🤣🤣

Looks like I'm calling big daddy Elon, need a couple bucks.

 

[VIOFO-Support]

My current setup and has been working well since August 2025 is just below my avatar,
the A329S with interior Cabin cam and Rear cam. All firmware is up-to-date, and the
APP software on my phone is also up-to-date.

What I want to know is this - can I replace the cabin cam with Viofo's Telephoto cam?
I believe I will at least have to change the A329S firmware to A329T. I'm curious as to
whether anyone has tried this, or knows for certain whether or not it can be done.
I really think I will find the Telephoto more useful than the Cabin cam. Thanks!

@viofo
@VIOFO-Support
.

Yes, you can. You just need to update the firmware to convert the A329S to A329T.

 

[Finnegan]

Yes, you can. You just need to update the firmware to convert the A329S to A329T.

Thank you!