Hi I have a insta set model 44200 clock radio just open pkg noticed next to electrical plug there a small hole with a 7 inch thin coated wire coming out of it what is this is it safe to use

Model 40018: You do not need the 9-volt battery to operate this clock.
NO TIME DISPLAYED WHEN PLUGGED INTO AC POWER:
If the display is blank when plugged into the AC outlet, unplug from AC power and remove the Insta-Set battery (lithium button cell), then plug into AC power again and manually set the Time and Date.

• HOUR: Press and hold the DST SET button for 7 seconds until the 12:00 flashes. Use the PLUS and MINUS buttons to set the Hour. Press and release the DST button to move to the Minutes.
• MINUTES: The Minutes will be flashing. Use the PLUS and MINUS buttons to set the Minutes. Press and release the DST SET button to move to the Month.
• MONTH:The Month will be flashing. Use the PLUS and MINUS buttons to set the Month. Press and release the DST SET button to move to the Date.
• DATE: TheDate will be flashing. Use the PLUS and MINUS buttons to set the Date. Press and release the DST SET button to move to the Year.
• YEAR: The Minutes will be flashing. Use the PLUS and MINUS buttons to set the Year. Press and release the DST SET button to secure the setting in the memory.

After completing the manual set for time and date, insert a fresh Insta-Set button cell battery and the settings will automatically be stored in the clock.

How to Change the Time on an Equity Insta Set Clock eHow

That's the radio antenna. Just tuck it under the unit or along the back of the shelf or whatever if you get adequate reception. If you don't then you might try fussing with it--taping it up the wall, draping it over a book, that kind of stuff.

Hold the Alarm 2 button down to change from Celsius to Fahrenheit.

A door technician uses a special tool to pull the emergency release after drilling a small hole in the door. The door can then be lifted without damaging anything. A keyed manual release assembly is then installed in the hole to be used if there are problems in the future like a power outage or malfunction like you have now.

Instructions

1. • 1 Press and hold the "Alarm Set" button for five to seven seconds if you have an Insta-Set 40001, 44100 or 44200 model; the year will begin to blink when the clock is ready for adjustment. If you have an Insta-Set 40009 or 40018, hold the "DST" button for five to seven seconds (until the hour begins to blink).
     
   • 2 Set the year by pressing the right-arrow, "Up" or "+" button, depending on your model of clock.
     
   • 3 Set the month, day, hour and minute. Press the "Alarm Set" or "DST" button to cycle through each field, and use the "Up," "+" or right-arrow button to adjust the values within each field.
     
   • 4 Press the "Alarm Set" or "DST" button after setting the date and time to store the information into your clock's memory.
     

Read more: How to Change the Time on an Equity Insta-Set Clock ' eHow.com http://www.ehow.com/how_5657092_change-time-equity-insta_set-clock.html#ixzz1d1qIibS4

Press and hold the "Alarm Set" button for five to seven seconds and the year will begin to blink when the clock is ready for adjustment. .

Set the year by pressing the right-arrow, "Up" or "+" button, depending on your model of clock.

Set the month, day, hour and minute. Press the "Alarm Set" or "DST" button to cycle through each field, and use the "Up," "+" or right-arrow button to adjust the values within each field.

Press the "Alarm Set" or "DST" button after setting the date and time to store the information into your clock's memory.

Press alarm 2 to change from Celsius to Fahrenheit.

Press alarm 1 to change from 24 hr time to 12 hr time.

This solution from the answers below worked on my model 40007 clock today: If you hold down the button on top that says DST for like 10 seconds it will allow you to force change the time.
Thanks. wd 11/21/2010

Go to a bad neighborhood and leave the windows down. Assuming any of the car is left when you get back, the stereo should be gone. Actually, there should be four small screws in the front panel.

This may or may not work. The 40009 and 40010 are almost identical. The 40009 doesn't mention military time and the 40010 does, so you might want to what the manual says. 40010 manual and 40009 manual. According the 40010 manual, is says:

Displaying the12/24 hour, Date, Month and Year:
Display the 12/24 hour by hold the "+" button for 2 seconds. To display the date, month and year by press the "-" button, the year appears and then if pressed again, the month and date (eg. “12 31” means Dec 31) appears.

So maybe that will do. I have a 40010, but my manual is different from the one on the website. Its DST button and not Alarm Set button to change the time. So maybe try holding down different buttons for a couple of second see if one lets you change it between 12 and 24 hour. Good luck, hope this helps.