e46 Squeeling sound on slow speed

my car is a 2005 e46, This week i notice a high pitch squeeling sound when at slow speeds, eg. when i start to move slowly , it is noticable but when speed increase above say 20km/h then it dissapears. It does not sound like engine noise , i think it comes from the wheels.

i know my parking drum should be replace because its shot but cant see how that might be part of the cause