The M45 as far as audio goes has been through several iterations already. The first system is fully documented in detail (here) and was very extensive. Following a problem with faulty equipment, what I call Version 1.2 was created. This version basically was the same system, but with some cosmetic changes and upgraded amplifiers and speakers. At one point I contemplated doing a full blown version 2.0 using some equipment that I briefly had in my possession, but after thinking it through and having better uses for that money I decided upgrading the entire system; including new monitor, full video and the likes was overkill.

 Below you can se the time lines and a bit more on the evolution of the systems, as well as links to the before mentioned "detailed" overviews and much much more. So if you have ever wondered what it takes to do a high-end Car Audio system, or are one who has an Infiniti M and is interested in a certain aspect of the install, you will most likely find it here.

Audio Install   2006   Upgraded System - (Version 2.0) Due to a blown amplifier, I took the opportunity to redo the entire system. New amps, new speakers and two amazing JL audio w7 woofers. Upgraded System - (Version 1.2) This is the first upgrade to the M's audio system, which basically was an upgrade in subwoofers. This was a short lived upgrade with four MB Quart 8-inch subwoofers. In the end a blown amp facilitated a complete revamp of the system 2005   Original System Installation - (Version 1.0) This install was comprised of all MB Quart Amps and Speakers, including an MB Quart 10-inch Subwoofer. Alll being feed the Factory source signals via a JL Audio CleanSweep Car Audio Information         Car Audio Install Pictures