A8 Parts Forum  

Go Back   A8 Parts Forum > General Natter > IT, AV and other Tech

IT, AV and other Tech All computing, home cinema and technology that isnt car related

Reply
 
Thread Tools Display Modes
  #1  
Old 15th February 2016, 06:28 PM
Goran's Avatar
Goran Goran is offline
Senior Member
 
Join Date: Feb 2011
Posts: 2,079
Default Mobius dashcam install

I have been reading dashcam reviews for ages, in the end I chose the relatively cheap Mobius camera based on some review which claim it is reliable long term.

I have been thinking where to run the wiring for a permanent installation. After looking through wiring diagrams I chose the driver's reading light switch.
It has a 12V feed, and can be operated with the switch so the camera can be switched off manually. Also I was hoping to avoid most of the pain of removing various trims to run the wire from the fuse box or cigarette lighter all the way to the roof.

Audi wiring diagrams are very frustrating. They mention one reading light plug 4-pin coming into the reading light switches, but neglect to mention the 5-wire plug going from the switches to the lights. Naturally this 5-pin plug has completely different wire colours to the 4-pin plug which feeds some wires directly into it anyway (??? thanks Audi)
So I had to use a bit of guesswork and an amp meter to figure out which wire supplied power to the driver's reading lamp in the central rearview mirror.
It turns out the red wire in the picture is an un-switched +12V feed, and the 3rd pin the green wire is the ground for the driver's side reading light. Hopefully that's all it is

Luckily i had some spare wires with the same pins, so I removed the 3rd green wire from the plug after the switches going into the mirror housing. I inserted my own wire and pin going to the negative terminal of the dash-cam lighter socket charger.
For the + feed I soldered a wire to the red pin-1 plug and soldered the other end to the + terminal of the cam charger.
The reading light no longer works but the switch now operates the dash cam charger. Working fine so far for a brief test run.
Let me know if I messed someting up, the wiring diagram is painfully confusing showing 6 light bulb type object where as there are only two reading lights in the mirror housing???


Where I got stuck is trying to prize open the plastic surround around the light switch and rearview mirror. I need just a little gap to feed through the usb power plug and cable to reach the camera at the top of the windscreen. I unbolted the two hex bolts visible under the light switch cover but that seems to have no effect, the damn thing won't budge.
Please let me know if you know how to remove this pesky plastic trim.

To be continued...







Attached Thumbnails
Click image for larger version

Name:	Mobius install 1.jpg
Views:	1525
Size:	421.3 KB
ID:	12432   Click image for larger version

Name:	Mobius install 2.jpg
Views:	1163
Size:	474.4 KB
ID:	12433   Click image for larger version

Name:	Mobius install 3.jpg
Views:	1402
Size:	387.8 KB
ID:	12434   Click image for larger version

Name:	Mobius install A8 wiring diagram.jpg
Views:	10185
Size:	286.8 KB
ID:	12435  
Reply With Quote
  #2  
Old 15th February 2016, 07:02 PM
Goran's Avatar
Goran Goran is offline
Senior Member
 
Join Date: Feb 2011
Posts: 2,079
Default

Here is the first picture with some wire labels (my interpretation).

Also, out of curiosity anyone know how to remove the little light bulbs in the mirror housing? The transparent plastic hatch is easy to remove but fingers won't fit in there to pull out the bulb.


Attached Thumbnails
Click image for larger version

Name:	Mobius install wire lables.JPG
Views:	1662
Size:	87.6 KB
ID:	12436  
Reply With Quote
  #3  
Old 15th February 2016, 07:16 PM
The_Laird's Avatar
The_Laird The_Laird is offline
Senior Member
 
Join Date: Jun 2009
Location: Redmile: Leics, Notts, Lincs border - near Belvoir Castle
Posts: 4,533
Default

On the topic of the bulbs, Brian posted on this some time ago IIRC, he used long nosed pliers with the jaws padded with foam or something similar
__________________
2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim.
Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .
Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not).
Reply With Quote
  #4  
Old 15th February 2016, 07:50 PM
moltuae's Avatar
moltuae moltuae is offline
Senior Member
 
Join Date: Sep 2014
Location: East Lancs.
Posts: 2,492
Default

Does the cigar lighter lead have a mini USB on the other end?

My dash cam (a Transcend 220) did. So rather than attempt to tuck away the cigar lighter plug like that, I purchased a USB lead and DC-DC regulator.

This was the lead I bought, though this has a right-angled USB plug. I you need a right-angled plug check the bend direction is right for you (right-angled USB plugs are available in left and right bend):
http://www.amazon.co.uk/gp/product/B0058TW7WC

I used a DC-DC regulator like this (can't find the exact one):
http://www.amazon.co.uk/gp/product/B00GXXFBC0

I fitted the regulator (with an inline fuse) in the driver's foot-well fuse area. Then I ran the lead up behind the A-post trim, then tucked it under the roof-lining along the top of the windscreen. The trim can be a bit difficult to prize back far enough in places, but once done the cable is complete concealed except for the inch or two where it connects to the dash cam.
__________________
Mark
------------------------------------------------------
2002 FE S8 Ebony Black Pearl
------------------------------------------------------

------------------------------------------------------
Cars Owned:

The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present)
The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo
The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
Reply With Quote
  #5  
Old 15th February 2016, 11:40 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Location: Devon
Posts: 2,701
Default

You could also take the gubbins out of the cig lighter adapter and just wrap it up in tape. They're usually only the size of a large stamp. That's how my fixed phone charger bracket runs in my A6

Without following all the tracks, I'd say some of the surplus lamps in your diagram are probably for switches, rather than bulbs you can get to.

Elsawin implies that the mirror has to come off before that trim will move. Its not very clear on how though - "use screwdriver to lever out interior mirror on left side between mounting plate and mirror base"
Reply With Quote
  #6  
Old 16th February 2016, 04:56 AM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,529
Default

Quote:
Originally Posted by MikkiJayne View Post
Elsawin implies that the mirror has to come off before that trim will move. Its not very clear on how though - "use screwdriver to lever out interior mirror on left side between mounting plate and mirror base"
The mirror is on like a ball bearing mount and if you lever it hard enough will come off by levering forwards or backwards but it's a real pig to get back in again due to how hard the springs are on the ball bearing mechanism. I used a towel to protect the mirror whilst I levered it back on with both hands
__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Next - Clean Car, Phantom Aeriel, Clean Car again, Fit Variable Back Box with remote control on/off Loudness, RNS-e, Clean Car again!
Audi A8L D3 4.2 Petrol with LPG - Oyster Grey
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
and some other A8's A8L's and Mercs
Reply With Quote
  #7  
Old 16th February 2016, 06:51 AM
moltuae's Avatar
moltuae moltuae is offline
Senior Member
 
Join Date: Sep 2014
Location: East Lancs.
Posts: 2,492
Default

Quote:
Originally Posted by Architex_mA8tey View Post
if you lever it hard enough will come off by levering forwards or backwards but it's a real pig to get back in again
Yeah, ain't it just!

Knocked my mirror off while I was out once. Spent half an hour in a car park trying to get the damn thing back on!
__________________
Mark
------------------------------------------------------
2002 FE S8 Ebony Black Pearl
------------------------------------------------------

------------------------------------------------------
Cars Owned:

The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present)
The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo
The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust
Reply With Quote
  #8  
Old 16th February 2016, 10:25 AM
tc4332's Avatar
tc4332 tc4332 is offline
Senior Member
 
Join Date: May 2014
Location: Wigan, Greater Manchester, UK
Posts: 2,031
Default

+1 on that Mark & Neil.
I knocked mine off when I was connecting my dash cam supply from the four pin socket in the roof electrics. The supply there is ignition fed and is ideal for my Roadhawk HD2 camera, and there is more than enough space for the voltage dropper.
__________________
Ray at Wigan Pier

2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore..
In progress, Nothing left to do.



Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter)
Reply With Quote
  #9  
Old 16th February 2016, 10:40 AM
Architex_mA8tey's Avatar
Architex_mA8tey Architex_mA8tey is offline
Moderator
 
Join Date: Jan 2009
Location: London/Oxford/Swindon
Posts: 7,529
Default

Heres the spring in question shown on top of the mirror for clarity (this one is D2 but the principle is the same on both)

__________________

Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Next - Clean Car, Phantom Aeriel, Clean Car again, Fit Variable Back Box with remote control on/off Loudness, RNS-e, Clean Car again!
Audi A8L D3 4.2 Petrol with LPG - Oyster Grey
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
and some other A8's A8L's and Mercs
Reply With Quote
  #10  
Old 16th February 2016, 10:49 AM
David's8's Avatar
David's8 David's8 is offline
Senior Member
 
Join Date: Jan 2012
Location: Helensburgh, Scotland
Posts: 3,113
Default

It all seems a bit of a faff when for 15 Nextbase sell a kit which includes transformer, piggy back fuse holder and plenty of cable witha standard micro?/mini? USB plug at the end. I used that and just gently pushed it behind the roof and A pillar lining takaing it down to the driver's side fuse panel where I pluuged it into a suitable fuse socket. Must have taken me around 20mins.
__________________
2002 D2 S8 Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18 Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 12:36 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.