I mentioned this site in another post, but I thought that it would be helpful to place it on a separate thread. Anyway, look here for helpful head unit installation information: The Install Doctor's DIY head unit installtion tips for Contiques

Be sure that your browser is capable of opening an Adobe Acrobat file; otherwise, you will need to download this file to your PC's hard drive and open it there (you will still need Adobe Acrobat Reader though).