Alpine S630
I had an Alpine S630 installed. The price was around $380 installed. It works perfect .. just like factory because I think it is the same thing. The audio store where I had it installed was very good, installed it under the seat just like Honda, and I guess used their own kind of bracket. They did not think it was any big deal - I guess they know what they were doing. I would just find a good audio store who does installations - much cheaper than Honda dealership for the same thing. When I hit the am/fm button, it goes from AM, FM1, FM2, etc...then to CD, and CD ch (for changer). So you get to use the CD in the slot in the radio and then the 6 under the seat.... works great!