I finally bit the bullet and purchased some upgrades of the old girl. New audio Panel and transporter that includes the ads-b transponder.
I had heard good things about advantage avionics over in chino California. Well… it nearly all went wrong. The number one thing they failed at was communications. They would say one things, then another, it was hard to get answers sometime. I liked the surprise call one friday saying are you getting your plane today? What? I didn’t know they were done. Here is a short video detailing some issues with the service.