new here with a problem with bmw

A little introduction, My name is Sam. I been on this site for sometime looking at info about wiring an alarm and when I finally thought I got, I don't. So, I finally decided to register. I have a 96' BMW M3. The main problem I have is wiring the alarm to work with my central locking system. I'm really having a difficult time making this work. Just wondering if anyone else with BMW's have had any problems and can chime in and help? Thanks in advance.

Oh btw, Crimestopper sp-100 wiring into an 1996 BMW M3 Coupe

You have two ways to do it on US vehicles; 1) With factory alarms, go for the alarm module, WHITE/ black - lock and blue/red - unlock. 2) Without the factory alarm remove glove box, control module with the plugs facing you, one rectangular with heavier cables, 2 x quadplugs, middle plug, either yellow or purple, pin 17 blue/red + is unlock, probably empty socket opposite, pin 4 is lock +. If there is a wire at that point it's white with a red trace. Extend lock time pulse for window/roof closing* TEST. The plug to it's right has the door and possibly trunk triggers. *Make sure your 1 shot facility is still working. Bulldog has a free access site, check that as well.

What you're saying is that theres another harness instead of the prewired for alarm harness? Do you have any pictures and can you be more specific?

If you've found the prewired alarm plug, what's your problem?

The problem is actually getting the lock and unlock to work with my alarm. I'm not sure if the module is messed up or what, cause wiring my lock(-) and unlock(-) to the prewired harness is not working. I believe my prewired harness for the lock and unlock is (+). Do you thinking using relays would work?

If you go to the factory alarm plug, it's neg pulse so you won't need relays. Check your alarms output to see if lock and unlock give you negative pulses as they should.

On the manual it says (-). This website is confusing cause I was looking up wiring diagrams, on 1997 3 series it said (+) for lock and unlock, then I went to 1998 and it says (-) for lock and unlock.I looked on bimmerforums and they said it was (+). http://forums.bimmerforums.com/forum/showthread.php?t=1188309 .Anywho, I tried wiring my lock and unlock directly to the factory alarm plug and still no luck..

92 to 98, E36, pos locking at the quadplug, that's what the European versions did. 98-05 E46 Neg locking. In the US there was a factory alarm on the E36. This part used neg locks with the same colours as the E46. So on your model you have 2 choices which adds to the (your?) confusion. Simply test, throw over the latch on the door you keep open, shut other door and poke something into the striker so the car thinks the dome lights have shut down. To sum up, ig you have the factory alarm you have a choice of 2 lock types.

I've done a test, and it tells me the wires from the alarm is positive. I've also tested the wires from going to the motor, I ground my test light, and every time I hit lock and unlock, it would light up stating that its a (+) pulse. And since my lock and unlock from my aftermarket alarm module is (-), using the 3 wire positive door locks or 5 wire alternating door locks would be appropriate for this situation?