All I know is that if the most loop is disconnected at any point nothing on it will work accept maybe the radio on stereo or hi fi system. Since its a loop
I don't know why they call this a termination its more of a jumper in my mind.
If you don't want to spend money on parts do the reverse of the cd install procedure accept you are bypassing whatever is not working or what you don't want.
WITH AN AFTERMARKET HEAD UNIT
Somewhere in the above thread they tell you how to run a most EXTENSION to the relocated head unit which involves and fiber optic extension not a jumper . You have to relocate the head unit and hook it up if you want the SOS error to go away with and aftermarket head unit.
See entry 29