I only have the 6 Disc CD Changer.
Should I start out with adding sub-woofers?
Any suggestions?

thanks,
Mike

Depending on what you're looking to get out of your stereo, I think adding a 4 channel amp to the stock speakers might be a good start. My installer said that, although they're not great, the factory speakers are not bad and can benefit from some more power. I ran my factory fronts through an Alpine amp for a while and they sounded much better than when factory amped. After that, a sub is an easy upgrade.

Just a thought...
Shaun