What is the best type of car speaker?

The third generation TL is also the first car in the American market to include a 6 disc DVD-Audio system, output through an 8-speaker system, engineered by Panasonic and tuned by Elliot Scheiner. The system also plays back normal audio CDs as well as DTS audio discs, CD-Audio, CD-Rs and CD-RWs. The car is also equipped with a Bluetooth HandsFree Link (HFL) system, integrated with the audio system, to allow for hands-free usage of one's cell phone (provided the phone also supports Bluetooth and is compatible with the HFL's hands-free profile). The driver can simply voice-dial the number and carry the entire conversation over the car's built-in audio system; when receiving a phone call a display will show caller ID if it is supported by the phone. The driver also has the capability to transfer current calls between the car and his phone when exiting or entering the TL. There is also a phone book which can store personal phone numbers within the car's memory. With the built-in XM Radio tuner, owners can elect to pay a monthly subscription after the complimentary 3 months subscription expires from Acura for XM radio, which provides over 100 digital channels via satellite.