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I had an after market stereo installed and command pulled out. I experienced daily battery drain about a month after install.

I pulled f61 and f66 for 24 hours and went w no radio. Car fired up like new.

Put back in f61 (so keyless entry would work again) and left f66 out.

My thought process was that since command is gone its the draw. F66 doesn't seem to run anything else in the car.

So far so good.

Any thoughts?
 

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99 E430, 01 E430 Sport, 00 SL500
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>>F66 doesn't seem to run anything else in the car.

What does it say on the fuse chart located at the fuse box?
 

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Discussion Starter #3
>>F66 doesn't seem to run anything else in the car.

What does it say on the fuse chart located at the fuse box?
Radio is listed as F61, F66. F66 is COMMAND. F61 is the actual radio and what I am now using for the aftermarket. Everything seems to be working fine.

See if my battery dies tonight. Bet it doesn't. I'll bet the installer merged the two power lines or grounded the command line. With no more fuse should equal no more leak.
 
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