I have everything connected but the power antenna. My aftermarket stereo has one output signal to power the antenna, but it looks like the SC400 has many signals feeding into the "Auto Antenna and Motor Relay" block in the wiring diagrams here http://web.ukonline.co.uk/soarertt/hifi.htm. Anyone know exactly what signals need to be grounded or powered and what I should connect the antenna output of my head unit to? Thanks.

 

There are two wires which have to be (activated) to raise and lower the power antenna. They are (pink w/bue stripe, pink w/
green stripe). Connect these two wires together and attach to your power antenna wire off of the aftermarket deck and it will work great.

Shane

 

Thanks for wire info! Noticed that the antenna goes up all the way, then comes back down a little. Is this normal? I never watched it work when the factory system was installed.

 

It's there. You'll probably have a male and female end if I'm not mistaken. On my 95 there was a diversity setup and i only used the male input that is standard for all radios. I fit no problem.
The antenna connection is over to the right of the original factory radio if that helps.

Shane