I've been tinkering with the search function here in the forums. I have found that if you put what you're looking for in double quotes and select the box for Show Posts instead of Show Threads, you'll get better results, at least I think you do. I'd rather see posts about the specific thing I'm looking for, then I can go to the #1 post of that thread and read through it.
For example: to search for the rear view camera, you type in "rear view camera"
and click the button for Show Posts
. A string of posts from different threads will be displayed. Look through the posts to see if any are close to what you're looking for, then select it. Go to the first post and start reading.
Maybe helpful, maybe not.