Hi, you don't need the firestick, there are a lot of different types of antenna on the market, personally I find the firesick too ridged (even with a base spring) I prefer a steel whip.
The radio looks good, and is a popular one for the 4 runner/surf as it fits neatly into the din space under the cd/tuner.
Check thruogh all the threads in this section, there is loads of info.
Good luck,
Robert