The size of cables provided with this unit are the most annoying thing. The center speaker cabe is too short as well in my opinion.
As one end is open ended, I have swapped them around to the most sutable required for the distance from the main unit, and then cut and soldered accordingly.
I grudglingly bought the pretty expensive Wireless Unit for the rears, and even found the speaker wires that connected to the wireless box were short, as I do not want to have the wireless unit sitting in the middle of the wall or floor but to the end, so again the soldering opton was the only way out of this. Panasonic seem too think that everything is laid out and built symmetrically in a room. I have mailed them regarding this, and hope to hear from them,and maybe get the right size cables (not holding my breath).
By the way, all is set up now and its sounds superb, cannot fault it on that and the blu ray picture quality is far superior to the PS3 that I was using up till now, and comparing it to a few friends individual blu ray players as well.
If only I could get the dvd playbacck to be region free, that would be the icing on the cake for me.