I am thinking about buying another 99 Sable (we have one already). Before I decide, I want to know if there is a way to install an aftermarket stereo in it. It is an LS with the auto climate control panel. I know there is a kit for the GS with the regular climate control knobs, but what about the auto? Anyone know? Where would I find such a kit?

Is that the MACH audio system?

A custom auto stereo shop could get it done, but it's going to be a pretty penny. The Mach system that Michael is speaking of can be upgraded to be a quite nice setup. I had a '97 w/Mach and I replaced all the speakers (even the little ones near the rearveiw mirrors) with a slightly higher wattage ouput and it was awesome. But you may talking about a system you can hear 2 miles away.