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      12-20-2017, 12:44 PM   #14
jmwilson125
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Drives: 2016 M235i
Join Date: Feb 2015
Location: Somerville, Ma

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Quote:
Originally Posted by Anthony235 View Post
Weird, I don't remember using any positap for my BT kit. Hope you get it sorted.
I used one for mine. If I recall the bt rev 3 had a grey wire and a red power wire. They grey wire had a plug on the end the plugs directly into the jb4. You have to take the jb4 case apart to connect.

Then I believe there was a red power wire. I screwed that into the end of the positap and then tapped one of the red power wires coming off of the jb4 harness.

Oringinally I think I did this external, but then I realized there was enough space inside the enclosure. Now I have the positap inside the enclosure for a cleaner look and protection .

I believe there are two red wires in the jb4 harness. I think I googled it and found out that it recommends connecting to a certain one and identified it by the d-sub number.

As mentioned above I'd check with bms. Take some pictures of the harness and send to Terry.
Appreciate 2