2002 Le Sabre Deck Install

Probably no amp in this car. The other member is thinking of older GMs, which did have the two peice stereo, similar to late 90s fords. Anyway, I have a 2000 Bonneville, just like your lesabre. You have gotten a crappy car to do stereo mods to!  I actually upgraded my stereo (if you can call it an upgrade) to the Bose system. you can do this in the buick but its a pain the you know what. The factory radio in these is quite interesting. You can convert the headunit from standard to Bose or Monsoon outputs depending on how you wire it up. If you are going to dispose of it all together, its not easy, but doable. You have the new 'lock and dock' stereo. Its hooks up when you push the radio into the dash, no wiring harness. (you know that from the looks of things). Scosche makes a wiring harness adapter for you.  http://www.scosche.com/scosche/connectors/gm.asp all the way at the bottom of that page. Its not the 32 pin or anything like that. Its more like a computer connection. Best buy either has it or can order it. You are going to lose  your warning chimes when you remove the radio, Thank you so much GM for using the radio to do everything.)  There is a module out there to retain your chimes. I have seen two methods. One involves relocating the factory radio, which is going to suck. the other is actually an auxiliary box that make the chime sound. you wire it into your wiring harness adapter, and voila, chimes. put the box wherever, under the dash i guess. I hope this helps. This is not your typical half hour radio install, but this info is accurate, and you can do it. good luck.