Adding a new sub / amp to bose system

I have an 03 Tahoe and I was wondering if it's possible to add a sub to the system. I have a 1000 watt amp and some decent 12" subs

So I guess I'm asking

1. is there rca leads on the head unit or at the stock amp
2. I need to replace the head unit in order to be able to add a sub amp


I don't really mind the regular bose system just needs a little more punch from the bass.

I'm not sure about your model (this is the 07+) section, but there is likely a PAC adapter that provides RCA outs from your head unit.

I'm checking on another possibility. Check back here soon, and I should have a solution for you.

I posted a reply in the 2000-2006 section.

my 07 has subs added to it with the stock non nav head unit