Retrofitting rear USBs

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oastra
Posts: 323
Joined: Sun Jan 24, 2016 8:16 pm

Re: Retrofitting rear USBs

Post by oastra » Thu Jun 14, 2018 4:49 pm

Usb is 5v, not 12v
OastrA


Dennis
Posts: 4
Joined: Thu Jun 14, 2018 1:43 pm

Re: Retrofitting rear USBs

Post by Dennis » Thu Jun 14, 2018 4:55 pm

You should read my question... I want to know if the original rear usb Port uses 12V Power and convert it to 5V by Its own.
oastra wrote:Usb is 5v, not 12v
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oastra
Posts: 323
Joined: Sun Jan 24, 2016 8:16 pm

Re: Retrofitting rear USBs

Post by oastra » Thu Jun 14, 2018 6:46 pm

Oh ok. I missunderstood, sorry
OastrA


Dennis
Posts: 4
Joined: Thu Jun 14, 2018 1:43 pm

Re: Retrofitting rear USBs

Post by Dennis » Wed Jun 27, 2018 7:39 am

hi,

i wrote a german Manual: how to connnect the rear USB Port to the power supply of the front USB Port:

https://www.astra-k-forum.de/index.php/ ... achrüsten/


aaaaplay
Posts: 45
Joined: Sat Apr 07, 2018 1:11 pm
Astra Model: RS-V 1.6T
Astra Options: Touring Pack (Adaptive Cruise/Sunroof)
Astra Colour: Nitrate Silver

Re: Retrofitting rear USBs

Post by aaaaplay » Thu Jun 28, 2018 3:09 pm

Dennis wrote:
Wed Jun 27, 2018 7:39 am
hi,

i wrote a german Manual: how to connnect the rear USB Port to the power supply of the front USB Port:

https://www.astra-k-forum.de/index.php/ ... achrüsten/
What you've done is to connect it to the power supplied to the console USB. While that is a simple way of doing it there is the potential for issues.

Vauxhall/Opel changed the dual USB to a single USB on MY17 (I believe) because not enough power is supplied to phones running Apple CarPlay/Android Auto through the headunit. Adding the dual usb to the rear and piggybacking it off the front USB could worsen this issue.

I have the parts ready to go to try this weekend, I think I can remove the cigarette lighter and feed the cable to it, therefore not needing to remove the whole console.

If I had my way I'd wire it factory style, but I just don't think its feasible.


Dennis
Posts: 4
Joined: Thu Jun 14, 2018 1:43 pm

Re: Retrofitting rear USBs

Post by Dennis » Thu Jun 28, 2018 3:23 pm

i think youre wrong, because by Default this is a different cable connected to the rear USB port there should be enough power for 2 USB ports

have tried my solution with a USB stick on front and loading on the rear USB port ...all Looks fine

Maybe one usb port is enough for most People...i dont know what Opel think.


geekonthepc
Posts: 39
Joined: Thu Feb 01, 2018 9:57 pm
Astra Model: Tech Line Nav 1.4T
Astra Options: Winter pack, OnStar
Astra Colour: Blue

Re: Retrofitting rear USBs

Post by geekonthepc » Fri Jun 29, 2018 12:41 pm

I still haven't got round to doing this for mine but am still pretty keen.

Will be interested to hear how you get on with fitting the USBs.


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