I'm fully aware of what's involved to enable the coming home and leaving home lights functionality and that you must have OEM auto lights, auto dim mirror and rain sensor pack (with a new windscreen etc...). I've spoken to a few forum members here about it across different posts and PM's as well as speaking to Hazzy Dayz directly, so I fully recgonise it's an £1100 or so job all in. That's manageable but of course a cost I could do without ultimately.
The reason I want it is purely for the leaving home lights, I'm not concerned about the coming home lights as they can be manually triggered by a flash of the headlights before exiting the car any way.
Therefore, I thought I'd ask the question - can I code or wire the car to permanently use the leaving home lights when using the unlock car feature on the key fob, night and day? I don't think if it's Xenons and sides or the sides and fog light feature instead, I just want a light source. My Mk5 Golf GTI 2.0T had this (with OEM Xenons) and it was a feature I miss the most.
The next curve ball is that I've got an MY10 8P3 A3 Black Edition 2.0TDI 170PS without the auto lights/wipers/auto dim mirror from factory and I know programming the 2009+ CECM's is still an art people are discovering & developing. The car obviously has factory fitted OEM Bi-Xenons and LED DRLs.
I've already checked out Marc's very useful guide to forcing CH/LH lights on the 8P1 & 8P2 chassis cars (and bought a repair wire) but it's something I read conclusively has not been successfully achieved yet on a 2010 or later A3. (This is the link I'm referring to: cominghomelights - Audi Retrofit)
For reference too, enabling CH & LH lights in the DIS didn't do it on it's own (not that it would, but worth a try).
So, bearing in mind I've got VCDS (am a fairly competent user) and have a bit of cash to throw at this, what's my next step to establish the coding and potentially wiring involved to force the car to use leaving home lights (and coming home if that's part of the deal) all the time?