Not at all, it is just not possible on the Audi loom and requires wires to be picked form the caddy loom and placed back into the van it has been removed from. The A3 rear tailgate is loomed loomed independent of the tail light wiring as it comes from the roof to the A3 tailgate rather than via the tail light position.
I noticed the cabin light and climate control panel, the Bose system isn't as obvious.Climate and audio is all fitted with the Bose sound system in the rear arch as the interior lights they also are from the Audi but I’m sure you would have noticed that if you looked at the picture
The kit to integrate the aftermarket Pioneer headunit to the Bose amplified system is not a cheap piece of kit and something many A3 owners do not bother with in favour of aftermarket speakers. Where have the Bose tweeters been relocated to?
Granted, the halogen headlight A3 does use the same plug (1J0-973-735) as the caddy but there is also a 14 pin (1J0-973-737) A3 plug for Bi-Xenon headlights. I've not checked the pin locations on the wiring but I do recall another conversion where the guy said they were not the same.Headlights and tail lights needed no adaptions they are just plug and play
Tail lights on the Caddy use a 6 position plug (1J0-973-726) which on the left hand side of a barn door caddy has the rear door wiring loomed along with it. The A3 use a 6 position (1J0-973-733) with an additional 4 position (1J0-973-724) on the sportback. I'm sceptical as to how this can be "just plug and play"
And why would you say it’s hacked to bits have you seen it or are you just not skilled enough to remove them properly yourself??
On the contrary, I have removed these from donor cars on several occasions, what I said was I'd "be very impressed" if they were removed without damage. I'm assuming this is your Caddy and you still have access and the means to provide me some photos of these grommets to gain the favourable acknowledgement of the forum for your efforts. I have never ever replaced a full loom so cannot provide you with photos of these grommets refitted to a vehicle.
That's a lot of parts, I admire the resources of any man who can justify such expenditure to then go on to make a 66% monetary loss plus no doubt countless hours of hard work to get it all working together.And correct you can’t build one for 10k and it’s got 30ks worth of parts receipts to prove with no labour but it’s only worth what some one is willing to pay
As I have gone back to the eBay link, the sale has now ended.