factory sound systems are mostly bland. The Bonnie GXP'* is good, although I would mind adding a better sub.
No way on an STS. The GXP handles better, looks better, stole the Caddy V8 and did more with it. Everyone knows the STS. If you want people to look twice at your car get the GXP. I always have people asking me about it since it doesn't look like any other Pontiac. The clean lines on the GXP make people think it is something else. It had low production numbers, which means there aren't going to be alot of people around with cars like yours. THe pearl white is a very sharp color.
1996 SSE Silver Toupe
2004 GXP Crimson
1992 Nissan Sentra
(Goners) 91 Grand Am LE; 91 Grand Prix SE2; 95 Grand Prix "Special" Edition