I am looking to pick up a WRX sedan soon. I am trying to decide on the OEM alarm versus the Lojack alarm that can be installed in tandem with the lojack locator. After the lojack locator the alarms are the same price installed. I do like the plug and play aspect of the OEM alarm. I cannot find a list of OEM alarm features to compare with the lojack alarm unit. Any feedback would be great. Thanks!