When I installed the Stratus ESGi in my plane, I removed this GPS. When I bought the plane four years ago, my CFI used it when he ferried the plane to Jackson; so, it worked then. It had not been updated in 10 years. When I turned it on more recently, I got an error message. I called the company, and they said the message was related to the antenna and that the antenna I had was prone to damage from water. My plane is tied down outside.
If anybody is interested in the GPS, I'll send it to you for the cost of mailing it. If you want to keep it, you can pay me what you think it is worth.