CEL code # 41

sure i knwo what number it is and i read what it said on the go jeep site, but what exaclty does it mean?
41 Alternator field switch. Switch not operating correctly and check charging system.

also it causes interefierence in my speakers once the code shows up wich is usually withink 3-5 minutes of the jeep runnin. do i need a new alt? anyone had this code before?
thanks

anyone?

mines been doin that too id like to know also

Replace your alternator... That is the fix.

Clean your engine block grounds well too.