Got the Audio Control ACR-1 today from Crotchfield and went to town raping my switch knockout left of the steering wheel. Pretty much had to gut the entire back and smooth it full out to get the switch and LED in there. Also had to remove the shrink wrapped cover on the ACR (sorry no pix) and grind down the LED connector to make it all fit. Notice in the pix I still retained the clips off of the knockout so it clicked right back in! One final thing you have to do because of the board width of the switch is notch out the dash where it slides in (you cant see it because its behind the switch and knockout. Only thing I wasnt able to do was get the knob straight because of the hole I drilled was a smidge off but that matters non to me and looks good enough in.