Ive had my Pioneer D3 unit for about a year and I love it. I finally got around to installing my sirius box that I got for $10 and it worked great. I also just installed an MTX 460 watt 4 channel amp that I got from CC when they were closing. My roommate also got me 4 6x8 (I think) Sony 2 way speakers for christmas. Install went smooth, few small stupid problems but everything is wired and sounds great except the passenger rear speaker is rattling real bad I'll have to take it back out and see whats wrong. All in all I'm really happy.