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Need key on source 2010 e550 ASAP

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Old Sep 17, 2012 | 10:47 PM
  #1  
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2010 E550
Need key on source 2010 e550 ASAP

I am just about done hard wiring my radar detector in my 2010 e550
Problem is I need a key on power source under the drivers side
dash
Please
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Old Sep 17, 2012 | 10:53 PM
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beater with a heater
cig lighter or front underhood fuse box
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Old Sep 17, 2012 | 10:54 PM
  #3  
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2010 E550
Wire

My wire is not long enough. Can I use a source off of obd2 port
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Old Sep 17, 2012 | 11:42 PM
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beater with a heater
not sure... I have never in 15 years took power off an OBD port.
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Old Sep 17, 2012 | 11:46 PM
  #5  
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2010 E550
Obd

I pinned it and nothing worked
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Old Sep 18, 2012 | 04:32 PM
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beater with a heater
under hood fuse box #4 or 5 are switched, so is the cig lighter... don't know what you mean about pinned
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Old Sep 18, 2012 | 04:33 PM
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2010 E550
pinned

used a volt meter and tested
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