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Old 10-16-2005, 11:38 PM   #1
Q5Quint
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Default Car Alarm/Keyless Entry Writeup

I also posted this on r3v, but I know a lot of you don't ever go there, so I will stick it here too.

Hey guys, sorry I took so long, but here we go
This is for the 44.90 shipped k9 mundail 2 alarm, so it is a bit more pricey than the 30$ keyless, but hell, you get fuses and a siren and the lights will blink. It works AWESOME and has at least a 50ft range. I recommend this for every e30 and every car that doesn’t have keyless yet.



This is what came in the package from eBay user 'mypushcart'. You see the wiring harness and fuses, a relay to make the horn honk, the main unit, the remotes which are quite small and nice looking, siren, shock sensor, and lots of wires.



the instruction manual tells you essentially what to connect, but it doesn’t tell you what to connect it to. If you look online (google search for k9 mundail alarm manual or something) you can find a pdf which gives way more detail than the little book. The mypushcart guy also includes a printout that tells you what wires to splice into for your particular car, and amazingly he was right. It's just a bit of trouble finding the wires.

The first thing I did was decide I wanted the remotes to activate the trunk unlock, since I thought that wouldn’t damage the locks for some reason. So I looked in the trunk like the guy from here did. http://zoso.no-ip.org/318i-ke.html"]...g/318i-ke.html



The brown is ground, green/black and green/purple are the lock unlock, and I really am not sure what the blue and white ones are, but they don’t matter so o well.

The instructions called for me to look in the driver’s side kick panel for a wiring harness, so hey I found it a bit under the carpet after removing the speaker panel. You might have to remove the trunk opener latch thing, but luckily I don’t have one for some reason, so it was easier than it should have been.



remember the green/black and green/purple wires from the trunk? Search around through the harness a bit and you will find them. You might have to cut a slip tie or some of that strange tape stuff to get them out enough to splice into.



Be careful when you start stripping the insulation away, I am not too good at it and clipped one of the wires in two~ and the wiring harness does not give you much extra wire to work with, so BE CAREFUL if you want it to be easy. I also just taped everything up the first time to make sure that everything worked right~ later I cut the wires to a nice correct length and soldered everything up all nice and pretty and tied them out of the way. The blue and green wires come from a little plug that, well, plugs into the keyless unit. I think if you hooked them up opposite of what I did, the lock/unlock on the keychain might be reversed, but it wouldn't hurt your car. I also want to mention that the locks are triggered by the circuit grounding out, so be careful when your splicing to not let your pliers touch the side of the car, or the locks will try to lock/unlock and it might damage them.



The keyless unit needs a switch on the accessory circuit to know when the car is on and off, and you switch the car on and off to change some of the functions on the thing, so you have to do this. The instructions called for you to splice into a green wire coming from the ignition switch. It is pretty hefty and easy to find.



For the siren I was going to put it behind the headlight, but it wouldn’t fit too well. There is a good spot for it beside the horn on the front of the car, but if it started going off somebody could reach up under there and yank it out if they felt like it, so I went with a 'top mount' solution. The alarm is really freaking loud if you leave it inside the car like I did when I was making sure everything worked, so I would recommend you put it outside if you value your ear drums. It’s also nice because if you lose your car in the parking lot, just unlocking the doors is loud enough to point you in the general direction.



If the coolant gets too hot and it melts or something, there is a relay included with the package so you can make your horn honk instead of the siren go off~ but I hope I wont have to figure that one out.

Here is how you make the parking lights flash.



There is a grey/white and a grey/yellow wire coming out of the light switch. They are a pain to get to, but each one is for one side of the car. Just splice in the white wires from the unit and wow the lights flash. Each one is for a different side of the car, so you have to splice them both or only one side of the car would flash.

Here is the last thing you should do before you plug the harness into the main unit thingy. I think it’s a plug for the door chime, but I don’t have a door chime or under column panel so I am just guessing. You could pull power and ground from anywhere you felt like, but since this was hanging down anyway I went with it.



After I got everything hooked up, I made sure the thing worked, the soldered and fiddled with some wires, cut some shorter and moved some stuff around, and ended up with this:






I would say it has at least a 50ft range with the antenna going up under the door seal on the drivers side~ more than enough range for me. I turned the shock sensor so that it never actually makes the alarm go off, but if you nudge the car enough it will give a good warning beep. There are some extra wires you can hook up that will make the alarm go off if a door is opened etc, but I was more interested in the keyless aspect than the annoying alarm that will go off at 3am, so I just stuffed them up under the dash.

I say it was the best 44.90 spent on my car so far.

So here is the pic of the final installation all tucked up and nice, well except for that yellow wire but I fixed it afterwards.



Please ask me any questions and I can try and edit this and explain what happened a bit better, it isn’t hard at all and it took an hour or so to get working the first time, and then another hour or 2 to get everything perfect soldered and tucked away etc.

If you don’t have one, buy it and do it.
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Old 10-17-2005, 06:38 AM   #2
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cool write up. =D> =D> =D>
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Old 10-18-2005, 09:15 PM   #3
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Chris, can you move this to the stickied forum? A very useful write-up!
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Old 11-06-2005, 07:02 PM   #4
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Nice write-up!

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Old 01-13-2006, 02:07 AM   #5
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great writeup, used it today and works great
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Old 01-13-2006, 02:56 AM   #6
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Just a few quick notes on this writeup.

1. BMW door lock relays draw about 900mA of current. If your alarm doesn't have relays on board, you will need to wire them in.

2. Several alarms require the door pin circuit to function for the alarm to reset, or for programming. The door pin switches are not isolated, you can catch all doors from the drivers door.

3. When connecting the wire for ACC (as most label it) you will want to verify with your test light that the wire stays live when the engine is cranking. Most alarms will get all upset if you don't.

4. Some BMW's will get upset if you do not isolate the light flash circuit, causing the turn signals to operate weird. There are 2 parking light circuits for a reason, I just isolate with 2 diodes.

5. A proper set of crimpers is available at Home Depot for $20. I have used them for over 25 years, they are excellent.

Good job gettin the writeup done!

Someday, I am gonna do an install and have someone photograph my work. I never will, I am just too concerned about getting the car done!

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Old 02-16-2006, 12:08 AM   #7
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I just wired up the same alarm. i have to agree, this was the best 50 bucks i've spent on my car yet.

Now if i can figure out the horn instead of the annoying siren.
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Old 04-01-2006, 02:03 PM   #8
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great writeup. love having keyless entry and alarm for only 50 bucks
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Old 06-25-2006, 12:48 AM   #9
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i love you for this thread!
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Old 08-09-2007, 11:18 AM   #10
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***UPDATE***

It has been nearly 2 years and the system still works great. I think the batteries in my little fob are dying since I have to be within 20ft of the car now for it to lock/unlock now, but 2 years on a watch battery seems like it is legit.

If you haven't done this yet stop being lame! Worth it!

-Quint
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