So, this begs the question... if you currently have a custom splash screen, is your unit set to monochrome or color already??? you tell me the m5 splash is color,the nav and sirius upgrade i installed is black grey and , if you go to settings you have 2 color choices but neither is color, so that leads me to believe that I have monochrome,unless I am color blind, the seller that charged me $600 dollars had the savy to install custom splash but did not want to hit the radio button in nav coder for color screen, even though they also upgraded the firmware,unless this could be done without navcoder,I asked them about it no response,now i am trying to figure it out.