Hi Tim, Mate noise I have found can be hit and miss, in my 09 fg ute I had a little signal noise, however in my '10 50th none. A few things to check, 1. Signal noise ratio on the amps, anything above 100db would be desirable. 2. Ensure proper shielding and separation of power cables and speaker cables. I ran mine down the centre of the cabin driv side, only coz the caps behind the driv seat and speaker cables down the sills. 3. Sound deadening a big must, don't skimp I know it's not cheap but well worth it. In mine with the aircon on with doors and windows shut it blows the excess air out the drivers side door rubber seal. 4. Check the gains, on amps with lower s/n ratios this can help with reducing unwanted noise. I'm running the audison bit one. I'm not sure if you have the premium colour icc but if you do depending on the level of system your searching for it may be good enough considering it has a 5ch eq. If you have the standard icc then your really are very limited, I personally know someone in the industry who tested the premium colour icc and said its ability was very very good for a factory unit. Pity they skimp on everything else in the setup!!!.... Are you planing to install your system in a ute or sedan?? Hope this was helpful let me know if I can help. Dave