I got a Shaker 1000 head unit from a 2008 Mustang for pretty cheap to see if it'll go in my 1990 LX. I'm able to slide it about half way in until it rubs on the carpet under the radio location and won't go any more. Are there any install kits that make this easy and hopefully without hacking up the dash? I see Metra makes a double DIN kit for the fox, but I don't see how this addresses the bottom clearance. Any advice?