Post Aftermarket Stereo Fiasco

I feel that this issue should be separated from my other thread about my new stereo and bypassing the JVC thing.

Once I finally got the new thing working, I still have the multiple warning lights on the dash but that's nothing new.
My (yet another) issue is with the MFD,

Symptoms:
Climate; "Check the connection to the air conditioner"
Audio: "Audio Off" (non-issue)
Trip Info: No battery levels, no arrows
Menu: "The external system is not connected"
Dest: Same as "Menu"
Map: Same as "Menu"

I recently bought a virtually identical Prius to drive but I really need the '08 to work/pass inspection as it is my work vehicle.

I don't think it's a bad MFD and I hope somebody can point me in a the right direction.

Thanks!

 

Thanks for the response. I'll look again.
I don't think I unplugged anything from the MFD and I left the thing plugged in and just put the MFD aside
while I worked on the stereo. I hope I missed another connector (or two) !