I need to set the clock on a CD/cassette radio in a 1999 Ford E 450...also how do I set preset stations too?

Pretty common problem for this era Ford radio. Easiest way to solve this problem is to install an aftermarket radio.

If you have buttons on your radio that allow you to switch stations, it generally is simply a matter of pressing and holding the button in place for 10-15 seconds. The year, make, and model of the vehicle doesn't say much, as vehicle may have an aftermarket radio. Just find the station you want and if there is a are button presets, just push and hold it in. On most of my cars, old and newer that I have owned, confirmation of the setting is generally accompanied by a beep. Good luck! JD

start the car turn the radio on scroll to the station you want then push and hold the preset button 1 thru 9 untill it beeps then go to the next station you want to set and do the same.

On the driver side fuse box, you have 5 larger fuses.

You have rows of 9 fuses across. In these rows, the far right fuse in the 3rd row down is the radio cluster fuse. This should be a constant on fuse that provides power to the clock and keeps power for the memory preset stations. The next to last fuse in the 4th row down is the radio fuse. This one looses power when the key is turned off.

I hope this helps. God Bless.

My radio did the same, the antenna was unplugged under the passenger dash, as for the casette, mine still doesnt work...nor did it in my last saturn so im thinking that maybe they just have defective cassette players idk

Setting the time:
Hour: Press and hold the CLK button and at the same time push the SEEK button < decrease the hours > increase the hours.
Minutes: Press and hold the CLK button and at the same time push the TUNE button < to decrease the minutes > increase the minutes.

Push clock button down and use seek and tune to adjust time

Okay, I'm assuming that you were sucessful in resetting your radio code.
I'm also assuming that you have a CD player (which may not be the case).
The flashing clock also functions as an error code indicator. It should say something, indicating what the error is. You can't set the clock until the error is resolved (a disc stuck in the CD player, for example, on no disc in the CD when it's been told to play).
The procedure is as follows (which you probably know):
The audio system display usually shows the time when the ignition switch is in ACCESSORY (I) or ON (II). It shows the operation mode of the radio, cassette player, or optional CD player/changer when you operate them, then goes back to the time display after five seconds.
If an error occurs while operating the optional CD player or changer, the display will keep showing the error code and will not switch to the time display until the error is corrected. You can set the time only when the clock is displayed.
To set the hours, press the H (Preset 4) button while pressing the CLOCK (SCAN/RPT) button. Press and hold the H button until the hour advances to the desired time.
To set the minutes, press the M (Preset 5) button while pressing the CLOCK (SCAN/RPT) button. Press and hold the M button until the minutes numbers advance to the desired time.

If you don't have a CD player, or no error is showing in the clock read-out, leave a comment so I can investigate further.
Hope this helps you.

Does your car have an automatic raising and lowering antenna? If it does check your fuses for it. If not pull your radio out of the dash, and check to make sure that the antenna wire has not become lose or unplugged from the back.