Wanted to share because the product is worth the hype. There are a few threads about this but wanted to give my own perspective. I added a shock sensor to the factory alarm today from ADDSHOCKSENSOR.COM. Jose is the man and was more than helpful about how to best install and was more than happy to answer a few minor questions I had…even on Sunday. The product, sensor, relays and overall wiring harness is constructed very well. It was a really simple install overall and from start to finish took about 30 minutes. There was really only one important main trigger wire splice that took a little time to make sure it was the correct wire and to splice it appropriately. Product works really well and sensitivity is adjustable to meet individual needs. This product is a great addition to the anti-theft arsenal of things many of us are using to deter and secure our vehicles.