Welllll, have had the GTS less than 2 mos and I decided the stock stereo had to go. Went with a Panasonic MP3/xm radio with Kicker subwoofer and Thunder 4 channel amp. I originally put the stereo in from behind the dash, but it didn't fit well, so reshaped the dash trim a bit so I could put the stereo in from the front. System sounds UNbelievable!