Can't connect OBD II Scanner to Prius

I am unable to connect to a 2005 Prius

I have an Actron CP9190/CP9185 Elite Autoscanner. I have used it many times on other cars and many other Prii but it won't connect to this particular car. ( I have a small car lot and keep 8-12 2004-2009 Prii in inventory) I tried 3 other Prii that I have on my lot and they connect immediately and power up but this one won't. When I first got this car in it had some lights on and I hooked it up and it worked intermittently. I had to hold the connection just right or I would lose connection. This car had some aftermarket Bluetooth or GPS system that was removed before they traded it and I had my mechanic remove the bird's nest of wires next to the OBD connector that weren't connected to anything. This was about a month ago. This car is a 2005 with 129k. I had the battery rebuilt before I sold it. The new owner has put over 2000 miles on it since. Now the CEL and triangle are on again and I am trying to see what the codes are but can't connect.

Is there a fuse that powers the connector? or is one of the pins a power supply? Any advice would be appreciated.