Hi Koanga! I car is F10 LCI come with basic stereo sound, there is no speakers in rear door panels. I am thinking of upgrading to HK system. Just want to know if the all the wire is already pre-routed? If not pre-routed, what wire do I need to purchase? Can you let me have the part number? As I cannot find the wire harness specifically for audio system with HK option in realoem.com, I suspect that it maybe already pre-wired. Meanwhile, what if I just replace all the speakers/tweeters with HK speaker/tweeters without adding amp and necessary wire harness (if not pre-wired), what could happen?
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