In my own experience I have tried many input devices with some success. I have installed xm satellite radio and had some problems with receiving signals. Plus, the radio would pick up engine noise, even with noise suppression devices. But I‘m sure this type of device would be fine professionally installed on larger bikes such as dressers. My success on my sport bike has been with ipod or iphone mounted via handle bar mounts as to giving excellent production of sound quality, screen access for viewing and access to operate. The iphone produces a lot more volume then the ipod, but this may not be the case with the newer generations of ipods or mp3 players. Plus, be sure and turn shuffle off as the vibrations would cause either device to change tracks. I like the iphone in wired application as I can hear when a phone call was coming in and I could view the call and pull over and return the call if needed. Plus, Iphone has the addition of Sirius or Pandora satellite apps and I use and enjoy Pandora all the time as well as there are voice directed gps apps as well that work well with iphone. Also, iphone can be paired to the Bluetooth type communication devices such as cardio, scala and others; that allows taking calls while riding. Now there are a lot of selections of brand named marine type stereo receivers available for fairing type bikes. Check out these sites: Cycle Accessory Store, J&P Cycles – Motorcycle Parts and Accessories, Revzilla
One needs to remember that devices mounted on handle bars are exposed to weather and most are not water proof and need to be protected. Myself during rain I place my iphone in my jacket pocket to keep it dry and this allows use during rain. But as one looks at the many input devices there are just as many types and uses as one could want or need. It becomes personal preference. So look at the types and even try them out it you have riders with systems or dealers that can let you test them out. So much can be said in the mounting hardware as to how to attach your equipment to the bike. Many input devices usually provide options to mount their equipment. Think location as to ease of viewing, use, aesthetics and exposure; their are many manufacturers out there as their are types of mounting equipment. Check out these sites: Cycle Accessory Store, J&P Cycles – Motorcycle Parts and Accessories, Revzilla
Due to the miniaturization of technology, you can add tons of accessories to your helmet, such as GPS, CD and MP3 players, and communicators. You can add these motorcycle sound systems onto your helmet yourself, or you can buy helmets with these features built in. You can also choose between wired and wireless systems. In terms of quality, wired systems are usually better, but they leave wires hanging everywhere. Also, remember when installing these components that the more gear you have, the more you will drain the system’s battery. It’s also a good idea to consult with your helmet’s manufacturer before adding systems.
You can usually purchase a helmet with Bluetooth motorcycle sound systems built into it. These systems allow interaction between Bluetooth-enabled phones. These systems also allow for other inputs. You can install these systems yourself, or send them to the helmet manufacturer to have the system professionally installed. Professional installation is always a good idea because it produces a safer, higher-quality result. Revzilla, Motorcycle Superstore, and BikeBandit.com have great options for this type of system.
For communication systems that are specifically designed for rider to rider or bike to bike communication, check out HelmetAudio.com.