Wanting to add infinity basslink to 05 crew cab with stock cd/casset. Question is, are there unused speaker wires were the center console goes when you have bucket seats and bose or do I have to run wirers all the way to the head.

You will have to run wires, you will not find any under there. Nice thought but you might as well run new stuff because whatever wire you run will be better than what would have been under there anyway... Good luck

Also you might check into seeing if you need a Low Line converter or not since your probably wiring an amp up.

Funny you should ask, I just installed one of these a few weeks ago.
If you want it to be non fading hook up both sets of wires that came
with it, probably be easiest to run them all to the HU. If you just
want to tap into the rear channels, you can pick them up at the b
pillars between the doors on each side. I hooked one up to just the
rears in an explorer once and it sounded real good. If you stick this
thing under your rear seat if will hit surprisingly loud. If you need
wire colors or more info, drop me a line, I'll be glad to help....

Ox

thanks, if you have the wire codes at the pilars and the hu that would be great.

Does my stock cd/casset have line level outputs already that are not being used at the HU? I have a non bose 6 speaker system.