New plug wires = knocking?!

[Michael Gough]

Hey list,
Is there any way that changing the plug wires could possibly cause
knocking....at idle? Ugghhh, I replaced the wires with Bosch 7mm
"performance" silicon wires, and when I started the car, my (Saab APC) knock
light was flashing quite a bit. The only thing I can think of is maybe there
is some electrical interferrence somewhere causing the system to think the
the engine is knocking. The knock sensor wire is shielded though so this
shouldn't be the case. Anyone have any ideas? Starting to think about
putting the car back to stock, selling it and getting a Dodge Omni GLHS,
2000 lbs and 200hp :) but I really like AWD. The problem is probably
completely un-related to the plug wires and just decided to manifest itself
right now, but I don't know for sure.
Thanks
Mike