Stereo sistem probelm...
 

i brought this item 3 5mm Aux Cable Adapter for Mazda3 6 Car Audio Parts Pentium B70 Perfect Singal | eBay and I went to the grage to connect him and it didnt worked. so he brought something like this Xcarlink One USB SD Aux Mazda Typ 2 3 5 6 BT 50 Miata | eBay and he connect it and it also didnt worked. so he told me that we need to take that stereo to his computer man to jailbreak it or some thing like that and it will cost 70$. some one know what this guy talking about or he just trying to make more money on me...
i have mazda 6 2004 Executive 2.0...