I own a 06 G6 sedan with GT package and have lived with the stock system until I paid off the vehicle. I am now ready to upgrade the sound system and welcome your recomendations. The stock system is a 6 speaker, single CD variety (with a CD presently stuck in the player that I can't get out). I would like to retain the stock head unit so that the vehicle information etc. is available, one of the better features on this model. Anyway, I primarily listen to rock, not much hip hop so I don't feel like I need the powered subwoofer type system, just more power, better speakers and a CD player with an auxilary jack for my i pod. Thx in advance for your suggestions!