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Splicing into interior wiring loom for illuminated scuff plates???

jackanory Aug 17, 2017

  1. jackanory

    jackanory Registered User

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    Sorry if this has been covered before but i did search and found nothing.
    Basically i have some led kick/scuff/sill plates (call them what you will) to fit on the a4...(2009 uk car)

    I need to pick a live power feed up to run them only when the door is opened??
    As its a uk car it doesn't have the footwell lighting in it otherwise it would be a simple job...

    Any ideas on where best to pick a live feed from????
    Im thinking i can splice into the loom that runs inside the drivers cabin footwell????

    Any ideas which cables are which would be very helpfull...
     
    dubcool.pc likes this.
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  3. johnny_584

    johnny_584 Registered User

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    I would assume it has a door pin switch to illuminate the interior lights when the door opens.

    Perhaps the easiest place to splice into is that? It's only going to power when the door is open so ideal for that application.

    I have been thinking of adding some footwell lights and that is where I would look to piggyback from!
     
  4. jackanory

    jackanory Registered User

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    Good point mate...i was hoping somebody on here would know how to do this but i will suss it.
     
  5. johnny_584

    johnny_584 Registered User

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    Been a while since ive done it and last time was on a 95 fiesta. Door pin switch should habe an earth and live. Just splice into those and the illuminated sills should light up when the door is open.
     
  6. desertstorm

    desertstorm Moderator Staff Member Moderator VCDS Map User

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    There are no door pin switches on a B8. Things have moved on a bit :)
    There is a microswitch in the door lock mechanism that detects when the door latch is open.
     
    jackanory likes this.
  7. rum4mo

    rum4mo Registered User

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    Just maybe some other info to keep you out of trouble, back in '95 most if not all cars tended to use these door switches as power switches primarily and also as sensors for alarm systems, nowadays, most cars use these "swtiches" and/or micro switches as inputs to controllers, so using them as a power source is never a good idea. So, look for a proper 12V supply like at the interior lighting, LED current draw will be minimal, but it normally pays to do things same as or close to what the manufacturer does.
     
    jackanory and johnny_584 like this.
  8. lowlife89

    lowlife89 Registered User

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    What plates did you get?
     
  9. johnny_584

    johnny_584 Registered User

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    To be fair the one i was on was proper low spec so alarm wasnt even present! Never even looked to see if the b8 had one lol
     
  10. jackanory

    jackanory Registered User

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    Thanks for your help lads,,,,
    Will post a vid when i get round to fitting them..
    I went for the audi logo in white,,,
    Do a youtube search for audi moving led
     
  11. jackanory

    jackanory Registered User

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    Still struggling to find a decent power source for these kick plates??????
    Had a look at weekend but easiest way i can see is to splice into the dome roof wiring for the lights..
    Any easier options????
     
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  13. gary_a4_quattro

    gary_a4_quattro Registered User

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    I would have thought that using the front interior light was probably the easiest way imho - dropping wiring down the front a-pillars each side
     
  14. jackanory

    jackanory Registered User

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    Cheers gary,,,,only way i can think of as well as i dont fancy hacking the interior loom apart...
    Will have a go when we get decent weather....
     
  15. Fwings

    Fwings Registered User

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    Hi I have done this through the interior light, done this awhile ago and as far as I can remember the power actually comes from the earth, you will need a test lamp or meter for this, for some reason it back to front when you open the door for the lights to come on. very easy to do as you can run the wire along the headlining and down the a pillar and along the door trim.
     

    Attached Files:

  16. jackanory

    jackanory Registered User

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    Cheers fwings,,,,im going to fit them this weekend as im doing the interior led light upgrade so will be removing the light dome at the front...

    Can you remember what colour wires you spliced into mate?????
     
  17. JRock247

    JRock247 Well-Known Member VCDS Map User

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    Sorry to butt in but can I ask where you purchased the illuminated scuff plates?

    I found a couple on ebay few but at crazy crazy prices, £400+!
     
  18. 666markyboy

    666markyboy Registered User

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  19. JRock247

    JRock247 Well-Known Member VCDS Map User

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  20. GjrBartlett

    GjrBartlett Registered User

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    Morning, I quite like these, are they decent quality?

    Have you installed them yet?
     
  21. JRock247

    JRock247 Well-Known Member VCDS Map User

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    Not fitted them myself yet. Should be ordering a set next week.

    Would be great if someone could post some pictures of them lit up and comment on the quality.

    Sent from my SM-G950F using Tapatalk
     
  22. jackanory

    jackanory Registered User

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    Im thinking of selling mine if you want them???
    Just not got the time to fit them...
    £75 plus postage brand new in box
     
  23. JRock247

    JRock247 Well-Known Member VCDS Map User

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    Really wanted to see them in action before I purchase a set for myself.

    Have seen some mixed reviews on them, so wanted to see some lit up, etc before making the plunge.
     
  24. GjrBartlett

    GjrBartlett Registered User

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    £75 is that for the full set or Front's only?
     
  25. jackanory

    jackanory Registered User

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    Just the fronts for a 5 door avant...im assuming the saloon has the same size doors...
     
  26. jackanory

    jackanory Registered User

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    Have a scan through the facebook page as i posted a vid of them running in the house...
     

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