ok, when i bought my car only the passenger side speaker was working out of the 4. when i took it buy auto xtras and divine sounds they both told me i had to rewire the whole car with B0SE stereo wire cuz it comes with a BOSE system. and also when i bought my car the guy threw in a set of speakers for free, they are Focus Earthquakes. is there anyway i could get these to work in my car without having to buy a new BOse system?