Instruct: Classify a given review as either positive or negative.
Query: How can they expect you to wait 4 months for replacement part?

Purchased in August, this unit came with a defective car adapter cord. In other words, you are fine until the rechargeable battery gives out-- you will have directions for the first 2 hours of your trip only !!According to their 800 number, the car adapter cord is still on back-order due to high demand. So they continue to sell new units, presumably with car adapter cords that work, but can't replace loads of defective ones. Weird. If you will only use the Nextar unit for very short trips, give it a try.