I read some of what you guys had post here on the alarm and I see no needs for paying $300 at all. I bought my alarm and I paid $160 + shipping which it was around $169 all together. The guy who I got it from sells BMW E90 OEM parts and believed me I just recieved this alarm and I was amazed (BRAND NEW) box sealed from factory. The only metter is that I havent got my car yet :mad: but as soon as I get it I will installed this myself and will save more than the half of the product and mounting price. Here is his email
mikeanzz@hotmail.com so hope this info is usefull for some of you guys that like me though that the E90 comes with the alarm