Sorry to be negative, but given the problems people on Forum appear to be experiencing with dualogic type systems, my thoughts would be "why" and I hope it was cheap.
This is from someone who often buys vehicles with issues, although I steer away from automatic problems and my cars are always cheap.
I work on the theory of only spend what you can afford to throw away.
I have to agree with Bugsy mike. There is a thread and if you search you will find ideas. I cant understand why these thing have so many issues. If someone can assemble it, it has to be repaiable. I hope is something simple.