Installing sub with stock Bose system

[AL Yeager]

Yes I have 05 Yukon and added a sub and amp. I did not connect it to Bose factory. I kept stock speakers since they sound fine even with 2 12" subs. I use the "audio control lc1i line out converter and tapped off far rear cargo pillar speaker for signal to amp turn on for subs. Great little device. Check it out. There are cheaper less expensive loc's but this gives you much more control and ease of function.

That would be one way of running it. I figured going of the factory sub woofer lead was a better bet for cutting out high range, being low bass notes only.