Is the "TEL Adapter" unit required?

dts3 · 03-02-2021, 01:07 PM

I'll start with the usual disclaimer that I searched and couldn't find anything specific to my question.

I'd like to know if, when switching to an aftermarket head unit, do I need to keep the TEL Adapter Unit? (The "white box" that's on the same bracket as the base model stereo)

I looked at the pinout in the FSM in detail, and I could only find a few places where it may be needed:

Telephone integration. Obviously this would be disabled.
Also just as obvious should be that I would not be needing it with an aftermarket headunit
Bluetooth antenna. I would also not use this in an aftermarket head unit
OEM microphone. I will but using the mic that came with the head unit
Steering wheel controls. This one is interesting. I see that the steering wheel controls are routed through the TEL Adapter into the factory stereo. I'm guessing this is only to get the telephone steering wheel controls (but maybe volume as well?). If I get rid of the TEL Adapter unit can I just use the signal that goes INTO the unit from it's connecter without plugging in the unit? I'm guessing yes, but I'm not sure.

Does anyone have any experience with deleting this box? It frees up a lot of space that I'd like to use back there.

viiv · 03-03-2021, 02:29 PM

Yes, you need to keep it.

dts3 · 03-03-2021, 10:45 PM

Thanks for the reply. I actually tried it earlier just to see, and learned that climate controls don't work without the box. It's interesting that box called "TEL Adapter Unit" by the FSM is needed for climate controls. I eventually found posts about this. It turns out if I searched for "white box" instead of "TEL Adapter Unit" then I would have found the responses.

bigaudiofanat · 03-15-2021, 12:07 PM

If you want to use the phone buttons yes. If not no

03-02-2021, 01:07 PM	#1 (permalink)
dts3 Track Member Join Date: May 2018 Location: Farmington Hills, MI Posts: 599 Drives: 08 Expedition Rep Power: 6764	Is the "TEL Adapter" unit required? I'll start with the usual disclaimer that I searched and couldn't find anything specific to my question. I'd like to know if, when switching to an aftermarket head unit, do I need to keep the TEL Adapter Unit? (The "white box" that's on the same bracket as the base model stereo) I looked at the pinout in the FSM in detail, and I could only find a few places where it may be needed: Telephone integration. Obviously this would be disabled. Also just as obvious should be that I would not be needing it with an aftermarket headunit Bluetooth antenna. I would also not use this in an aftermarket head unit OEM microphone. I will but using the mic that came with the head unit Steering wheel controls. This one is interesting. I see that the steering wheel controls are routed through the TEL Adapter into the factory stereo. I'm guessing this is only to get the telephone steering wheel controls (but maybe volume as well?). If I get rid of the TEL Adapter unit can I just use the signal that goes INTO the unit from it's connecter without plugging in the unit? I'm guessing yes, but I'm not sure. Does anyone have any experience with deleting this box? It frees up a lot of space that I'd like to use back there. __________________ Visit my blog! www.LeftoverPi.com Last edited by dts3; 03-02-2021 at 01:11 PM.

03-03-2021, 02:29 PM	#2 (permalink)
viiv Enthusiast Member Join Date: Jun 2019 Location: Montreal Posts: 293 Drives: 20 Nissan 370Z PR M6 Rep Power: 34015	Yes, you need to keep it. dts3 likes this.

03-03-2021, 10:45 PM	#3 (permalink)
dts3 Track Member Join Date: May 2018 Location: Farmington Hills, MI Posts: 599 Drives: 08 Expedition Rep Power: 6764	Thanks for the reply. I actually tried it earlier just to see, and learned that climate controls don't work without the box. It's interesting that box called "TEL Adapter Unit" by the FSM is needed for climate controls. I eventually found posts about this. It turns out if I searched for "white box" instead of "TEL Adapter Unit" then I would have found the responses. SouthArk370Z likes this. __________________ Visit my blog! www.LeftoverPi.com

03-15-2021, 12:07 PM	#4 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 852	If you want to use the phone buttons yes. If not no __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

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