Hi Marc and Roland
all that wiring, connectors and holders are mounting parts for the engine and do not belong to the engine directly but to the fuslage subassembly. Only the engines without attached parts were delivered by DB. I think you could be right with your theory, that the airframes were brought into that state that just the engine would have been needed and then delivered to an alternative assembly line like Wertheim. For me as well, it doesn't make to much sense that they brokeup the hole supplier chain. I think all the smaller parts were delivered to and installed within the closer Mtt. Regensburg network. Maybe the engine supply by rail took to long to the end of the war. So they looked out for a place closer to Daimler Benz in Baden-Württemberg. And Wertheim would be directly in the middle. Provided that DB still was producing in the Stuttgart area.
But thats just speculation, anyhow it sounds presumably to me.
I tried to google with "Daimler Benz U-Verlagerung"
and found the following site:
http://www.kz-denk-neckarelz.de/goldfisch/goldfisch.htm
DB was planning to move their production north into a underground facility near Neckarelz (see also Doggerwerk near Happurg for BMW engine production). That makes the distance to Wertheim even smaller (65km). I think that could explain a lot.
I hope I'll find some time to visit Cham municipal administration. It's not yet in my calendar, but on top of my to-do-list
Let me know what you think on that Neckarelz thing. New place new luck?
ps: Over a period the DB605s where attached in Bodenwöhr as well. I found some parts like fasteners which were directly fixed to the engine.