Mazda cx7 bose question,help me.

[wellboy]

my car is mazda cx7 08...but my car without bose system,i bought a dvd install my car,but this dvd only support with bose system cars.so my can have no sounds now.what can i do for it???

about this dvd more infomation as follows:

Mazda Navigation DVD v.Mazda CX7 car gps dvd - products - FlyCarBo Electronics Co., Ltd.

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