Just received my 5071 this week from BB and during the install, they couldn't get the speakers to work (no sound). Finally, the installer switched the speaker wires (i.e. put the red to white and white to red). The grey line/writing on the cable goes from plus to minus and this does not make sense to me. The installer said he never had to connect the TV that way, but "it's working" and left. The sound does work, but every now and then I hear a crackle when the tv switches between commercials.
I am wondering if something is wrong with the wiring in my system and if I should try and get it fixed.
Please advise if anyone has heard of a similar problem.