[mach831]

HELP i have a 2003 GL and if i plug in a DMC mp3 into CM plug under seat i lose my info center after driveing for a bit lose radio controles first the other i lost info center with mp3 onplug

 

[bones200]

What plug under seat are you using? Should be using the plug under left side pocket. Unless this is a new kit I am UNaware of for a MP3 player.
What are you connecting too(wires or wire cluster)?

 

[DaveO430]

I have heard of the radio going out with some MP3 interface device but never the display going out. If it goes out with the MP3 unplugged there may be some other problem. Did you disconnect it at the main plug under the seat or just the MP3 connector? If not it could be a problem with the harness.