Signal for sub amp...

[genob]

hey all,

This all pertains to my 2007 H2 SUT w/Bose Audio and NAV.

I've been searching around trying to compile as much information as possible on doing a sub install.

I am going to build a small box for a single 10" and mount it where the 3rd seat goes. This is going to be a very portable box that I can "quickly" detach if need be.

My question: What is the definitive answer on getting a signal for the sub? Do I use a line level converter and tap off of the rear speakers? I don't want to have to tear apart the dash just to get a signal for the amp.

Thanks!