PCM 2.0 "UNKNOWN" Error

[OscarAH1W]

Greetings all... Over in the Cayenne section there is a post about the PCM System error: UNKNOWN UNKNOWN UNKNOWN UNKNOWN UNKNOWN UNKNOWN UNKNOWN when starting the system up... no ultimate resolution but the consensus for the cause is a break in the line... I have a 2004 Turbo Cab and installed a MoBridge system and have had ZERO issues.  My Parents have a 2004 Turbo Cab where the previous owner went cheap with either the Nav-Tv adapter, the installation, or BOTH (But when you get an otherwise pristine Turbo Cab with 28,000 miles for $42K, you don't nickel and dime).  The installer unplugged the CD changer and pulled the plug off of the fiber optic wires (that plugged into the changer) using a line break splice to plug the two wires together instead of plugging in a loop per the NAV-TV instructions.  I bought both male and female loops so that I could put the vehicle cables into a new plug and install the other plug with the loop.  Since the issue isn't resolved (but the audio works so this has to be the "break") I have to assume it isn't getting a good connection.  Upon closer examination, the fiber optic cable ends on the loops are gold metal and shorter than the plastic ends in the car loop.  This end difference prevents the plastic ends from seating far enough into the plug to make a good connection.  Any advice on how to either replace the ends, or a part number for the original Porsche plug that I could match with a different loop?  I am thinking that Porsche probably have a plug that goes into the CD Changer MOST connector for vehicles that don't have the changer installed...Thanks!!