Wife of owner answers phone and her husband doesn’t return messages. It is mind blowing how a small business can’t hit the basic customer need of FOLLOWTHROUGH. I’ve have to work with this company because my company signed a contract years ago. Please request from them a list of current customers to call and ask how DDS supports them before you sign a contact. Spend that time up front and decide the level of support you want. Anyone can sell you wires, displays, and installs. Customer service is what you are paying for.