Originally Posted by Mrabyss

So cost me 1/2 hour of "labor" to clear the light and determine why it had come in.

The SES light came in because if you disconnect any connectors, in this case is was the heat and AC connectors, and turn the car on the computer can't communicate with those controls and therefore gets confused. Since it can't communicate it throws the SES light. Therefore I recommend if you have your HU replaced you do it yourself or ensure the person doing it does not turn the car ON without all connectors connected. Cost me $52 for this lesson. Now to try and get that out of the install place that did my speakers and HU.

Speaking of which I will post some pics soon of the install. Got a real nice Ipod mount that looks slick and clean.