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Center Console USB Port Power Problem

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Old Feb 6, 2025 | 11:13 AM
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2015 S63 & 2014 ML350
Center Console USB Port Power Problem

Currently, I run my radar detector off one and baby monitor off the other one. Sometimes they will both come on when I get in the car or sometimes I have to unplug and replug them in to get them to come on. I've tried replacing the the whole usb port itself as well as using one of the one to two USB Y adapters which didn't work. Anyway to have these always powered on without having to fiddle with them to power on? Thanks!
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Old Feb 6, 2025 | 03:30 PM
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2020 S560, 2014 SLK55 (Prev. 2016 S65, 2013 SLK350, 2008 CLS63, 2006 E350, 2006 CLS500, 2005 C230K)
What version of the car is so large as to require baby monitor?

​​​​​​I run a USB powered speaker for my daughter in the back (from the rear USB) and it always turns on.
Try with one of the devices on the back ports or maybe just get a 12V USB adapter.
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Old Feb 6, 2025 | 03:59 PM
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2016 S550e, 2005 Nissan Xterra 4x4, 1984 300ZX
Those plugs have very limited juice to begin with maybe your drawing more than they will provide? I remember trying to charge my phone off it right when I bought the car including a y to join them together and still no near enough to drive a larger Samsung Galaxy phone. I slipped a high output flat flush cig lighter adapter into the ash tray and that easily drives my Samsung Galaxy S22 Uttra that needs plenty of juice to keep up with power needs
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