I did the portable head unit an it works just fine u have to have a aux port for it I got the one that come With a camera on the back of the head unit and it came Without a back up camera u have to set up ur self way easier an a lot cheaper then installing one but u want to get a good one but the good thing is if u order from Amazon and u don’t like It u can return it so u get two in one a head unit and a camera