Hi everyone, Need your help and good advise for my install. I have a BMW E46 sedan and I want to install an IDMAX 15 IB facing forward through ski-pass. My current system includes Pioneer 80PRS head unit, Audison Bit One, Morel Elate 602 for front stage (passive powered by PP PC650.2), 10...

So I'd like to add a subwoofer to my car (1995 BMW 318i Convertible), but I don't want to just stick a box in my trunk. I've seen posts about IB/open-air setups by mounting a square woofer to the ski pass which seems interesting, but I'm not to good with this stuff and I'm not sure where to...