inputs.text: meh ok lack documentation figure - installation fairly straightforward despite lack instructions packaging documentation instructions numerous spelling grammatical errors not great not get paid write documentation good reading chinglish ok several buttons touch screen show bluetooth maps etc not work unit may standard models usable addons bought mehemory card would not read directly card rear port would read adapter laying around connected cable front portoverall happy due price unit expecting complete functionality documentation disappointed figured program stations play dvd turn radio least tunes car overall rating would probably 7 10