I purchased through an agent in China a DVD-GPS car player for my Renault year 2008. I have it installed by the car dealer in my country. Everything works except the GPS. I contacted Waywell Company for after sales service. All my mails, calls, faxes remain unanswered. I paid 650 US dollars and I am deprived of my GPS roaming. Please help me to sort out this problem with the company.