Car Head Unit USB Issue

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Dave B
  • Forum posts: 1

Mar 9, 2019, 9:35:07 PM via Website

Hi, a newbie here would be grateful for any advice.

I have a new head unit for my car running Android 8.1. The head unit has a USB input for an external dashcam. My issue is that the dashcam is not recognised by the head unit on startup. After some tinkering I have noticed that the dashcam is recognised and works if I disconnect it and reconnect when the head unit is on. The problem seems to be that the dashcam gets power from the unit immediately although the head unit takes approx. 45 seconds to initiate. It seems the dashcam is only recognised by the head unit if it starts up after the head unit. Is there any software settings or hardware mods that could be used to delay the USB device receiving power until the head unit is up and running.

Cheers

Dave

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  28
Deactivated Account
  • Forum posts: 822

Mar 10, 2019, 12:14:57 PM via Website

Dave
Welcome to the Android pit!
it sound normal to me. your head unit needs that 45 seconds to power up.
I don't know of any settings that will change that.

Let me see if I can explain this a little clearer.
Your dashcam will power up immediately
When you start your car. But the power for your headset comes through your webcam before it can power up !
Sounds like a normal delay to me.
The more circuitry the electricity is traveling through, the longer it will take !
A 45 second delay is not uncommon.
And I don't think there are any settings that will remedy this.
Suggestion; can you plug in your headset without going through your dashcam?
That might eliminate the delay.

— modified on Mar 10, 2019, 1:23:22 PM

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ibrendan
  • Forum posts: 1

Nov 24, 2019, 8:27:49 PM via Website

Did you ever find a solution for this? I have the exact same problem.

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Derionna
  • Forum posts: 1

Oct 29, 2020, 6:26:40 AM via Website

This maybe caused by that there is no enough power for the USB ports. I use XTRONS Android car stereos which have multiple USB ports and don't have such problems.

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