Bluetooth adaptor not turning off

[Mr.President]

Hi,
So i bought this bluetooth adaptor wanting to stream music and for calls, although i didnt think the call quality would be any good.
https://m.ebay.ph/itm/For-BMW-E85-86-83-COOPER-Cable-adapter-Car-Audio-Bluetooth-HIFI-Adaptor/303576130512?_mwBanner=1&_rdt=1

Anyway, i just connected it to the basic radio of my e86 and it works, taking off the vents was a pain though, but it seems that BT dongle is searching for a connection even when radio is off and the car is locked. This worries me because this is a weekend car and im afraid that it will drain the battery if it stays on.
What do you guys think, should i be worried, should i have bought a different BT adaptor that turns off? Is there something i can do now to make it lose power when the radio is off?

 

[ph001]

How do you know it is looking for a pairing with the ignition off just out of interest?

 

[Mr.President]

I see the blue light blinking on the dongle. Wanted to test it before assembling everything.
When the phone is connected the light flashes slowly and i see on the phone that it is paired. When i turn the BT off on the phone it starts to flash faster.

 

[Chris_D]

If your battery is in good condition and regularly charged you won't have anything to worry about. THe dongle will have absolutely nominal current draw, esp if it isn't in paired mode.

 

[Mr.President]

Thanks for the reply, Chris. The battery is in a good condition but its a weekend car so it sits in the garage a lot.

I hoped BT dongle would at least go into stand by mode so i left it for an hour, but it still wants to connect to the car
The other thing that bothers me is that the streaming from phone continues when i turn off the car and radio, because the bt dongle doesnt lose power.
Will try to find a car electrician that can maybe sort it out or just throw it in the bin