1993 BMW 318i alarm/keyless entry

Hello  I am about to put a alarm system in a 1993 BMW 318i and i just need to verify as to where I can find the lock wires and what type they would be.The two postings on the site for this particular vehicle has two different locations for the wires. The BMW I am working on does not have factory alarm.I am therefore assuming the lock wires are found behind the glove box and the door trigger is found in the drivers rear side piller under the seat. If someone can verify this info or has additional information on this vehicle ,it would be greatly appreciated.

                          Thank-you in advance.

POWER LOCK|WHITE/ red           |+  |factory alarm plug
|     POWER UNLOCK|blue/red            |+  |factory alarm plug

Even if there's no OEM alarm, the plug will still be there probably tapped up along side a larger loom of wires.The alarm plug is a black 12 pin plug located just behind the glove box. It is mounted with the pins facing you atop a vent just to the left of the body computer. Other wires at the alarm plug are: 12V- RED / white; Accessory- PURPLE / white; Siren- BLACK/ blue; Ground- BROWN / orange. Do not use the power sources at the alarm plug to operate high-current devices. The other side of the siren wire is mounted in a 2 pin plug at the passenger rear corner of the engine compartment. The other wire in the plug is a brown ground wire. DEI recommends attaching the siren at this point.

Thank-you so much for the quick reply. It cleared things up emensily.

                                                                                          maxcat