The CZ501 (in my tag line).. Factory refurb off ebay. Didn't want to wait on ebay when it came in and went to best buy for the wireing harness adapter and the european antenna adapter (35 bucks) Vrs about 16 getting from ebay. Closest thing to an issue was the mounting sleeve. The tabs you push in wont hit any openings on the Crossfires stereo opening. There are small holes in the top and bottom sides of the clarion frame and I ended up putting a tiny screw into the frame to the housing and all was well. It has the 4 volt preamps if I ever want to upgrade or add another amp. Blue tooth works great. The phone book on my phone isn't compatable so I dial with my phone and put it away. The website (clarion) has a list of phones and phonebook compatability. Worked with my old phone (newphone had issues and later and got fixed). So next phone upgrade will be checked for compatability.