LynetteAS

Ok so I did a bunch of reading and went with Phoenix automotive to get my stereo upgrade as many people recommended them. I looked at install videos and they seemed pretty straight forward. I couldn’t find an install video specific to mine and was looking for some guidance. I have many plugs that don’t connect to anything and have only one that goes into the stereo and pretty much just supplies power as there is no sound or ac control. Has anyone installed this in an IS 350 WITH stock navigation? I’m starting to wonder if they sent me the right harnesses at all. I am currently waiting for some guidance from Phoenix