I need to replace the backup camera on my H2. It has the navigation system so I don't want to mess that up. I'm looking for a clearer camera and won't want to have to run new wire. Can anyone recommend an easy to install replacement? I've been looking online but I hope to get some advice from Hummer owners. I'm also looking for the navigation system update if you have any recommendations on where I can get one. The last update was quite a while back. Thanks again.