Where Is Car Radio Antenna?

[4malydrs]

I have a indash monitor, but i took it out today to have a new dvd player installed but i cant find the car radio antenna(stock) i have the decks out but i looked and reached around for hours does anybody know where the antenna was orginally, i did not install it so im not sure where the installer put it..........please letme no

[4malydrs]

I have a 2000 gs 300