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I just added a subwoofer to my Outer Banks w/ LUX & B&O Sounds system. In my opinion, the factory B&O sub is not very good. Perhaps just putting a new speaker in place of the factory sub would work, but I think the problem is more likely in the amp, but you wouldn't know until you tried it. It would be really hard to replace the factory amp, so adding an amp and connecting it to factor sub or aftermarket sub would be just as much work, so i opted for an additional sub. I may eventually tune the 8" factory sub to cover the midrange/higher low range frequencies.
I installed a 600W Alpine amp and a 10" Alpine subwoofer tube. All in about $250-300 with parts and wiring. It sounds incredible, i worked as a custom car audio installer and built several state competition winning vehicles... it's not a competition sound, but sounds great. This is my first post so hopefully this works, i'm adding some pics of the factory sub and wiring.
I used my AUX switch #6 for my remote wire, that way i can turn off the "extra" bass when necessary, without having to have a separate bass control knob. If you haven't wired any of your AUX switches yet, it's pretty easy. The hardest part is the glove box... the wires aren't long enough so getting both hands into the small space to splice them together was tough.
I installed a 8 AWG power wire from an empty battery post > new 40A fuse block > Driver's side firewall (gasketed hole already there, no drilling needed). Ran Power down drivers side under the door jams. Grounded near the amp on a factory grounding post. Installed a LOC from the factory wiring. There are four speaker wires going to the factory sub. My LOC had four speaker inputs. Because I've read that the factory B&O system tones down the subwoofer at higher volumes, I wanted a fuller sound without that downscaling. So i used the speaker wires from the Rear left speaker, and one of the pairs from the subwoofer. Ran RCA's from the LOC to the sub. Connect everything, and good to go. Total install time, about 4.5 hours.
Be very careful removing the rear panels. The clips are tricky. I didn't break any of the main clips, but did break some of the small ones. Putting it back together was not easy, and my softtop closure is tighter now.
Wiring:
Factory Sub & Amps (blue wires are my subwoofer > LOC splice)
DRIVER REAR Speaker Tie-in
Sub and amp installed:
I installed a 600W Alpine amp and a 10" Alpine subwoofer tube. All in about $250-300 with parts and wiring. It sounds incredible, i worked as a custom car audio installer and built several state competition winning vehicles... it's not a competition sound, but sounds great. This is my first post so hopefully this works, i'm adding some pics of the factory sub and wiring.
I used my AUX switch #6 for my remote wire, that way i can turn off the "extra" bass when necessary, without having to have a separate bass control knob. If you haven't wired any of your AUX switches yet, it's pretty easy. The hardest part is the glove box... the wires aren't long enough so getting both hands into the small space to splice them together was tough.
I installed a 8 AWG power wire from an empty battery post > new 40A fuse block > Driver's side firewall (gasketed hole already there, no drilling needed). Ran Power down drivers side under the door jams. Grounded near the amp on a factory grounding post. Installed a LOC from the factory wiring. There are four speaker wires going to the factory sub. My LOC had four speaker inputs. Because I've read that the factory B&O system tones down the subwoofer at higher volumes, I wanted a fuller sound without that downscaling. So i used the speaker wires from the Rear left speaker, and one of the pairs from the subwoofer. Ran RCA's from the LOC to the sub. Connect everything, and good to go. Total install time, about 4.5 hours.
Be very careful removing the rear panels. The clips are tricky. I didn't break any of the main clips, but did break some of the small ones. Putting it back together was not easy, and my softtop closure is tighter now.
Wiring:
Factory Sub & Amps (blue wires are my subwoofer > LOC splice)
DRIVER REAR Speaker Tie-in
Sub and amp installed:
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