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      08-10-2010, 10:25 PM   #1
henryhu
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Drives: 2011 335d
Join Date: Aug 2010
Location: Virginia

Posts: 15
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Retrofit Alarm, Not Prewired

Hi. I just got my new 335d and I love it. But it does not come with an alarm. I found out that my car is not prewired for alarm.

Has anyone successfully installed the OEM alarm on a car that is not prewired? Is it impossible (or close to impossible)? How much does it cost for all the parts? Where did you get all the parts? I found that I might need additional parts if I do not have comfort access or the premium package.

If anyone have installed it, can you explain your experience with the procedure? It will be very helpful if someone could post an instruction with photos on how to retrofit alarm on cars without prewiring for those of us who bought the car of production date after 03/09.

Thank you.
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