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Old 01-30-2013, 07:33 PM
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OEM vs. Aftermarket Alarm for 328i... Opinions?

Okay, I've been looking into this and researching options for quite some time now, browsing various forums, and I don't seem to have a very clear idea of what would be a better option for my '07 328i regarding an alarm, so I decided to consult you fellow Bimmerfesters, since you've been so helpful in the past . Because my car is '07, it came with the prewiring for the alarm, and lately with the surplus of vehicle break-ins and thefts in my area I've been highly considering getting an alarm, for either a legitimate theft deterrent or just a lights and sirens show to at least "scare off" potential thieves/vandals.

In the past, I've read that alarms are not really a great theft deterrent at all based on people's experiences, but that the little flashing light indicating that an alarm was active was enough to keep people away. Anyway... I guess my question is - regardless of effectiveness or ineffectiveness of having the alarm - which is the better option, OEM or aftermarket? Both will cost around the same to purchase and install, I've found, so cost is not the issue so much as my concern that an aftermarket alarm may screw with the car's computer/electronics (is this even true, or a myth?). There was one particular brand of aftermarket alarm I looked a bit further into, called Viper - seemed to have all the bells and whistles (remote start, horn, flashing lights, etc). Has anyone heard of it or had any experience with the brand? Any advice or opinions would be GREATLY appreciated.

On a totally off-topic note, below is a photo that I took this afternoon of my BMW in the snow.
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