iPod Interface Causing MFD Issue

Yesterday the MFD in my 2009 Prius randomly went dead. Before I take it out and send it off to Steve Woodruff to get repaired, he wanted me to check the 12V battery and "remove any foreign iPod interface" which, I guess, may be causing the issue?

My car came Toyota iPod kit factory installed C.old that be the cause -- 7 years after the fact -- of the MFD issue? If so, anyone know how I can remove that iPod interface to check? (I've searched the forums and have found mention of DICE interface -- but I'm not sure that's the same thing?)

Thanks!
John