hi all,

I am about to installing F500bt on my e90, and i just have quick Qs about the wires.

in the manual, it says the Yellow Wire(battery cable) need to be connected to a permanent 12volt from the battery. My question is if i do so, wouldn't it cause battery drain? i just want to make sure...

thank you.

If you have to ask that question are you sure you want to install this yourself??? j/k. It pulls a very negligible amount of power. I went to Cancun for a week and a half, came home, truck started right up. You will be ok.