[bmw.bob]

I have a 2010 X3 that says it is not pre-wired for the factor alarm. However it does have the wiring for the ultrasonic alarm module in the roof.
How can I connect up the siren, there is no wires in the cowl area or wheel well?
Does anyone know where the wire for the siren goes inside the car? Where I can get a cable and would it work?

[DBU]

Originally Posted by bmw.bob

I have a 2010 X3 that says it is not pre-wired for the factor alarm. However it does have the wiring for the ultrasonic alarm module in the roof.
How can I connect up the siren, there is no wires in the cowl area or wheel well?
Does anyone know where the wire for the siren goes inside the car? Where I can get a cable and would it work?

Here is how to do it. http://x3.xbimmers.com/forums/showthread.php?t=143171
Take a look at the PDF document see whether that wire is there or not.

[bmw.bob]

Thank you for the link.
I already have the instructions, the issue is missing the wiring for the siren? Not sure if it will work if I just add the wiring or where to get the siren wiring harness?