power brick. I was going to link you to the thread but I see you already found it. Just in case anyone else is interested, here it is. http://www.mp3car.com/vbulletin/gene...e-12v-24v.html. As far as audio, I tried to go cheap and just leave the stock speakers and use small amps. Well now I'm not happy with it and have to install all new everything I decided to go with Alpine though because they have the PDX series, which is stackable. Also going with their speakers for consistency.