wht would you want stp ?
utp is even as good and dont be afraid that it has no shielding. the pairs of an utp cable of cat 5 or 6 are twisted in a special wait to remove noise and interferance.
utp will do the job just as fine.
time for the sig:
'00 VW golf TDI upped to 130 HP - 18" RS 6 wheels - liliput 7" tft in indash housing - epia 10K - SB audigy - caliber 1 fahrad CAP - RF punch amp - hollywood 1.6K mono amp - boston acoustics pro - RF 10" DVD sub