Never any issues with the 2008 E90 and the iPod plugged in 24/7 for 2.5 years.
Never any issues with the 2011 E93 and the iPod plugged in 24/7 for 1.5 years.
Most of the time the iPod will be fully charged anyhow driving the car around so if it is drawing energy, it wouldn't be for very long.
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Jay (in San Antonio, TX)
2014 428i coupe, mineral gray metallic with black interior, black ash trim, luxury edition.
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