[tropical335i]

Hi Guys,
anyone knows where to find a "ground when armed" wire on the OEM alarm wiring to which i need to tap in the Orange wire from an aftermarket "talking module"

thanks.

[VP Electricity]

There is no wire corresponding to ground when armed. The OEM alarm works on the CAN bus and has no discrete outputs like an aftermarket alarm. Does your voice module have Arm/Lock and disarm/unlock trigger inputs?

[tropical335i]

the talking module has 5 wires:
black for ground
orange for 500ma activation
pink for accessory items
green for negative trigger
red for +12v

i need a wire from the oem alarm to activate the voice when the alarm is armed and disarmed and i know it is to be connected to the orange wire of the talking module.

thanks for your input.

[MUNDA]

Hey,

There is not ground when armed wire on our vehicles, it is all run through can bus.

Something that you could do is build a latching relay that is triggered off the security light on your rear view mirror. When you lock the car, the relay will be triggered and give you a negative output.

Here is a link to the relay setup:
http://www.the12volt.com/relays/page5.asp#pts

NOTE: You will have to hook pin number 87 to ground to get a negative output on pin 30.

[VP Electricity]

Using that method will keep the relay coil energized at all times in one state (locked) or the other (unlocked) and result in dead batteries. A relay coil will pull on the order of 100mA while energized. Eventually, that will kill your battery. Bad idea.

You would need a mechanically latching relay rather than an electrically latching relay. That would solve the current drain problem. Easier to find a DEI 390X CAN alarm and use its GWA output.

[tropical335i]

Thanx for your input guys.i only wanted to add some touch to the oem alarm.when connected to alarm systems which have that famous ground -when -armed wire,you get a "system armed" female voice message and an "alarm,deactivated" male voice message when you arm and disarm it respectively.

[VP Electricity]

Originally Posted by tropical328i

Thanx for your input guys.i only wanted to add some touch to the oem alarm.when connected to alarm systems which have that famous ground -when -armed wire,you get a "system armed" female voice message and an "alarm,deactivated" male voice message when you arm and disarm it respectively.

Yes, I am well aware of how the device operates - I just can't believe you're trying to add it to a BMW.

I have never seen an OEM alarm with a GWA output unless the OEM alarm was sourced from an aftermarket company like DEI or Code.

[tropical335i]

haha,seriously im also beginning to think it is gonna sound weird on a BMW...a talking BMW LOL.drop the idea.
thanks for input anyway.
cheers.

[cole92]

Don't mean to bump and old thread but the only way for arm and disarm is (see picture)