Hello. We recently bought a new 2019 Civic EX Hatchback. Dealer wanted to charge us $999 to activate the Rockledge Car Alarm System. We declined and are wondering what was left in the car? We still have keyless entry and remote start. Our primary concern is getting an impact sensor and ignition killer. Are there ways to activate or install the Rockledge ourselves or are there better options? Thank you in advance for your support.