The radar screen is a HUGE help also because with it no enemies can hide
The bonus here is the HARDEST to get (in fact all others are pretty easy) because of the speeder's repulsorlifts. Often you will helplessly fly directly over the bonus, prevented from nosing down into it. The trick is to sight it from far away, nose down as much as possible as high as possible, and dive for it. You MUST memorize it's exact location in the city.
At last we will reveal ourselves to the Jedi.
At last we will have revenge.