What is the black module with what looks a little speaker hook up to it in center floor console 02 grand cherokee Overland

SOURCE: Graphics display module/vehicle information center

It is probably bad.

SOURCE: Headliner falling in my 1997 Jeep Grand Cherokee with center console thing

You can try to use the spray contact adhesive

SOURCE: 2004 Jeep Grandcherokee - Transmission Maintenance

I'm going to guess since you didn't mention which fluid...Transmission?
First find out which unit you have (usually an id tag on it somewhere ) Then look up what kind and how much fluid in your owners manual (usually around four quarts...unit holds more but you can't remove it from the pan) Remove all pan bolts and lower pan. (some units have a drain plug, use it first if you have one ) you will see the filter attached to the valve body. remove it and install the new one, Make sure all gasket material is removed from pan and trans. Clean any metal etc from pan and internal magnet (there is always some in there but should not be a ton of it) Then put pan and gasket back. Make sure you can turn each fastener easily to make sure they are not cross threaded and only tighten them after they are all in there. Bolts do not have to be tightened down like they never should be removed again (snug then a little bit more)tighten in an X pattern not a circle.Replace about half of the fluid with car off, then put in remainder while running. Put your foot on the brake and shift to reverse then drive a few times then check fluid level.Low is bad, a tiny bit (less than half inch) over is OK.
Drive for a short ride, check again for leaks and re-tighten if any are found.
If trans was exceptionally dirty and yours has a drain plug, I recommend that you use a generic oil on the first change, then in a week, drain oil again and re-fill with good brand name stuff. and perhaps a bottle of lucas conditioner.
Good luck!

SOURCE: overhead console completely dead 2002 jeep grand cherokee laradeo

Check the fuses for the overhead console, could be that if not then the console needs to be replaced.....

SOURCE: how do you reset after an oil change on a grand

it will tell you in your owners manual in the glove box under oil life,but most cars it will be to turn the key to the on position and push the gas pedal completely to the floor three times with in 5 seconds and leave the pedal up,the oil light will blink letting you know that it has rest.