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BMW Is Giving Up on Heated Seat Subscriptions Because People Hated Them
(www.thedrive.com)
This is a most excellent place for technology news and articles.
Is this thing even real?
I would suggest using an aux cable instead.
My first car doesn't even have aux port, so I had to use something similar, but connect to 3.5mm jack instead.
the stereo often has an aux input on its backside that you can wire up
Yes, it's real and it works fine. There are also fully passive aux cable versions available.