The radio on the Limited and the SRT is different from the Roadster, as far as I know. I didn't have any problem connecting the new radio to the old wires n the base roadster. The Crutchfield-supplied harnesses and tools worked out perfectly. I only had to make the one aforementioned change to the power leads.

My next step is to install the 12 disk changer behind the passenger seat and hook that up... that will probably be my Christmas present...