Radio Power out?

[Bowtiekiller]

I have added a power antenna to the rear of my 05 GT and need to know if the Shaker 500 Radio has a dedicated power out for such use. I could tap onto the amp power, but then it would extend the antenna when the cd was on also. Hate to pull the radio just to find out it doesn't have one. Thanks!

 

[xxdmxx]

When I put in a powered antenna, I tapped into a 12v power.

Edit:
If it's the Metra Antenna, TacoBill did a walk through on this install before.
http://forums.themustangsource.com/showthread.php?t=445173