Detailed Instructions: In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.
Q: Product was fairly easy to install and lack manuals. Leave everything hooked up out of the box and it all works. The biggest draw back is the operating system sucks! You can't change the unit of measure, the radio is outrageously clunky and harder to use than the stock. Couldn't get it to work with my cars computer for next and previous track. to get the backup camera to work you solder the reverse wire for the bus to the reverse wire on the white aux plug. Nothing in the instructions states to do this. Oh spend the extra money on wireless transmitter and avoid running wire from front to back.
A:
2