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I installed an mmi andream nbt CarPlay unit in a friends 1 series 2013 f20. All was good (no issues present which will be described later in post), wired up and tested it before putting it all back together. Put everything back together, tested it, and the wipers came on and stayed on. I thought that's weird as not touched the wiper stalk. The stalk does nothing to turn it off.
So I started the car, battery was almost dead and it barely started. The wipers still on, indicator stalk not working and the lights are in the off position but the main lights are on.
We disconnected battery for 10mins then 30mins to reset it, still the same. Left the car overnight to sleep and this morning, no change.
I am confused by it all as I only touched the headunit to install the mmi box.
Any urgent help would be appreciated.
Edit: pls note I also removed the mmi unit and the issue remains.
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