I am adding a sub to my stock system. Whats the easiest way to do this since our decks have no pre-outs. Tap into the existing sub wires? Any info would be appreciated.

 

What model/year do you have? I hear the TLS has two high-level outs, which can be converted to pre amps.
I have asked if anyone knows how to just add a sub on here a few times (which wires, locations, color), but nobody has been real specific. They say you can lift the backseat up, and just take the signal going to the factory subs amp and use a high-to-low converter and running it to your new amp. Jump off the remote (someone said they had an amp installed somewhere and they had a blue and orange wire and the installer said the orange was the remote, which is weird). Then, run a new power wire from your battery, ground the amp somewhere and should be set.
Once again, if anyone can make this clear, it would help.