i don't think it's under a heavy electrical load.

i just read through both of those links you posted loren. i just installed my pcats tuner so it could be that, but i thought you said in one of your post that it happened without the tuner connected? well, when i installed it last night i had to to a quick job putting my car back together, to take a friend home, so my wires are a little messy in there. plus, i have an extra screw from my dash. doh! i'm going to first try to get everything back in there nicely and see if that helps.