Cutting into your a/c line??? I have a huge radioshack CB and all i had to do was take a dremel to a small part of my bottom left and right stereo mount. That CB fits in there so tight and looks good too. Check out that faceplate I made on my computer! I got my CB at a garage sale for $5.00, I mean what a deal. Now I have to figure out where I should mount my mic?