Quote:
Originally Posted by oldbiker
what good is the factory accessory plug if you can't use heated jacket?
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You have a great point but it doesn't change the facts. BMW has made the socket unusable for electric clothing (probably because the ZFE can't withstand that sort of current on a long-term basis) so you need to go directly to the battery. Simple as that. The acc socket is for charging the battery (if you get the voodoo right) and not much else.
Hard-wire a pigtail to the battery, 15A or 20A fuse, and you're golden.