I have a battery powered amplified speaker from the Shack that uses either a 9 volt battery or a transformer. I have it plugged into a voltage regulator in my car that drops 12 volts to 9 volts. It has it's own swtich and volume control also. I have one of Radio Shacks small mobile extension speakers plugged into that and use a jumper cable from the scanner to the speaker. I had used the car stereo when I had my Country Squire wagon, but it gave up at 283,000 miles and I now have an Alero. I have the speaker placed in the cubby hole at the front of the console, and that helps with the sound. Everything is set up on a switch so I can turn it all off at once. (these new cars don't have any good place to tape into accy power). I have the amplified speaker velcored to the right side of the console. I still need to drill a hole in the cubby hole to run the external speaker cable out from behind the dash. Plus find a bracket to put my scanner holder on. Panavice shows one for the Alero, I just need to see if anyone has it. For now the cup holder in front of the gear shift is working ok.