Don't believe anything you read about "ease of installation." The installation instructions are a JOKE! On my truck you either need to completely remove the dash or cut an access hole to access the GM passkey module. I chose to cut a hole in the inner plastic dash support, which isn't visible after the trim goes back on. So far, so good, it seems to have worked - but I spent about 8 hours on the installation. That might have been ok, except that they made it sound so easy on their website. They should have a huge disclaimer reading "some installations may be challenging or seemingly impossible."
We are sorry that you had trouble with your installation. Our install instruction sheets are taken directly from GM service manuals. Obviously each vehicle's install is going to be different and each customer's ability to install is going to be different. That is why we have a link to all the instructions posted on our website. It's actually posted on every single page of the website and in the footer of every single page of the website. We do this so that customers can see exactly what they are getting into before they buy our product.