Owner's Manual
Page 185
... Electronic Equipment: Incorrectly choosing or installing improper add-on electrical equipment, such as mobile telephones, two-way radios, stereo systems, and car alarm systems. Mazda assumes no responsibility for use with Mazda vehicles. This could be dangerous. Always consult an Authorized Mazda Dealer before you install any non-genuine parts or accessories, consult an Authorized...
... Electronic Equipment: Incorrectly choosing or installing improper add-on electrical equipment, such as mobile telephones, two-way radios, stereo systems, and car alarm systems. Mazda assumes no responsibility for use with Mazda vehicles. This could be dangerous. Always consult an Authorized Mazda Dealer before you install any non-genuine parts or accessories, consult an Authorized...