as of this post, i havent read that link, but imagine its as follows:
reground the pre amp outputs.
which is what i did, i had to do this on the head unit in my rx7, but i think its a kenwood...
anyway, the sub problem is fixed now, i should have tried it to begin with, i was just too lazy. i think the right speaker is F'd partially, its still in and out, ill have it out and check the leads on it today, since the shop is hella slow...

thanks btw!