After spending a day playing around with this piece of junky I have come to the conclusion that the TATO is not all it is cracked up to be. I followed the directions and installed it as you should. After I tested it out with it working fine, I put the dash back together. Turned it on and had no sound. I called PAC and they suggested cutting the RCA cables and connecting the powered line out connections instead of using the pre-amp outs. This scared me and I asked them and their response was 'it doesn't work now and we wouldn't suggest something that wouldn't work'. I decided to hook up the old stereo to make sure everything worked. It powered up fine and sounded good. I then hooked up the new AVIC and had sound again so I decided to stick with the pre amp outs. I got everything back together. This time around I still had sound. After a day of driving around I noticed the volume was all over the place. The fader doesn't work. It is 100% front. When turned up it distorts like crazy. Another call to PAC and they said ‘That is normal’. I said ‘It is normal for your product to not work as promised?’. They said ‘yes, sometimes that is how it works. It could be because yours is 8 years old’. Not exactly an answer that makes a lot of sense. It works just fine with the Toyota stereo. In any case the AVIC is awesome. I can live with the sound issues as long as I keep sound and then replace the speakers and an aftermarket amp in the spring when it warms up and I can work on it without freezing.