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Old 11-20-2023, 12:32 PM
oldskewel oldskewel is offline
Join Date: Nov 2014
Location: SF Bay Area
Posts: 1,418
oldskewel is on a distinguished road
Yes, interesting. The purple and black wires below go to something that looks like a backup battery.

So my guess it is something for anti-theft or tracking. Maybe installed by a previous lending company in case repo is needed. Maybe by the dealer while parked on the lot for sale. Guessing on all this.

I've had the rear seat bottom off for fuel pump access and never noticed something like this.
2001 X5 3.0i, 203k miles, AT, owned since 2014
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