[200q20v] speakers and phone

[skikrzy]

Do to my failure to proof my last question at the late hour, I will try to
be coherent ; I am trying to power up the factory telephone, the phone folks
say it needs power, it should light up even though I do not have a carrier
yet. I can not locate a fused circuit for it, can anyone help? Also, how can
I tell if my rear speakers have been replaced or not? (opening myself up for
jokes here)  I am new to this car, so thanks for the help.