Question about a 94 BMW 318

I have done many alarms but this is the first BMW i have done yet. I have heard that the ingition is a vacuum system if somthing? I have looked on the net to see if there is any thing different needed to be done to the car once i have installed the alarm (relay <besides the starer kill>, diode, resistors, ......). Any help would be nice, i already have found the wireing diagram needed for this car. just one question, there is two wireing diagrams on this forum for the same car. am i just not seeing it or are they different?? ecko

|       ITEM      |     WIRE COLOR     |POL|       WIRE LOCATION        |

|              12V|RED / wht or red      |+  |ignition harness            ||          STARTER|blk/yel or grn/blk  |+  |ignition harness            ||         IGNITION|green               |+  |ignition harness            ||  SECOND IGNITION|pur/wht or purple   |+  |ignition harness            ||       POWER LOCK|WHITE/ red           |+  |factory alarm plug *1       ||     POWER UNLOCK|blue/red            |+  |factory alarm plug *1       || PARKING LIGHTS +|gry/pur, gry/yel *3 |   |headlight switch            || PARKING LIGHTS -|blue/green (hazards)|   |factory alarm plug *1       ||       HEADLIGHTS|yellow              |   |headlight switch            ||     DOOR TRIGGER|*4                  |-  |factory alarm plug *1       || DOME SUPERVISION|comes on with unlock|   |                            ||  TRUNK/HATCH PIN|BROWN / white         |-  |factory alarm plug *1       ||         HOOD PIN|PURPLE / green        |-  |*6                          ||  FCTRY ALARM ARM|*7                  |   |                            ||FCTRY ALRM DISARM|*7                  |   |                            ||       TACHOMETER|black               |   |instrument cluster *2       ||       BRAKE WIRE|blue/red            |+  |at brake pedal switch       ||     HORN TRIGGER|BROWN / red           |-  |steering column             ||           WIPERS|blk/gry and blk/blu |-  |steering column             ||  LF WINDOW UP/DN|blk/wht - pur/wht   |A  |body electr control mod *5  ||  RF WINDOW UP/DN|blu/grn - yel/grn   |A  |body electr control mod *5  ||  LR WINDOW UP/DN|blk/yel - blu/grn   |A  |relay module *5             ||  RR WINDOW UP/DN|wht/yel - blu/red   |A  |relay module *5             |

Notes:

*1 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.  *2 The wire is located in a white connector behind the instrument cluster. Do not unplug the white connector with the ignition on or turn the ignition on with the plug disconnected.     *3 These wires are the separate left and right parking light wires. Use both wires and isolate each.  *4 Door triggers are BROWN / gray for the drivers front door, BROWN / blue for the passenger front door, and BROWN / white for the rear doors (if equipped). Use all three wires and diode isolate each. If the left rear door does not trigger your alarm system, then remove the diode on the BROWN / white.    *5 The body electronics control module and the relay module are located behind the glove box. When using a 530T and locking and unlocking with the key will cause the windows to travel full direction. The 529T will not alter the factory operation.    *6 On early production models the hood pin wire can be found at the radio harness or at the hood pin switch. On later models the hood pin is located in a single pin connector next to the factory alarm plug.  *7 If equipped with a factory alarm, the alarm will be plugged into the factory alarm plug. The only way to arm and disarm the factory alarm is with the factory remote. If your planning on using the 8360 pre-wired alarm harness the factory alarm must absent or removed.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA