I've been running my 860 since Jan. of '05 in 2 different cars and it's been great. I ran it in my old car with amps in a complete system and had no problems. I'm running it now in my new car using deck power on OEM speakers and I'm using TA and it sounds surprisingly good.Knock on wood. My 8600mp has been perfect. Great HU. Nice color display. I'm pleased. Knock on wood.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif