Very Annoying Squeak

Ive now developed a very annoying squeak when going slow i.e. slowing down for traffic, setting off etc. It sounds like it coming from the rear, its not sme sort of belt issue is it as the cambelt due this year? Its not my brakes either as it does it when the brake isnt pressed.
 
this sounds external though as I put the window down and listened out for it. Might just jet wash the car with WD40 :lol:
 
Does it only do it when the window is down?

Something around my door squeaked when the window was down for a couple months when i got the car then never didit again.
 
sound like your aux belt.. same as mine, when u take it over 2300 rpm it goes quite, if so just spray it with WD40.. stops it for a little while
 
^ that sounds likely. does this mean im going to need to change earlier than planned as the cambelt isnt due until December?
 
To eliminate any engine sounds, as your coasting to an halt, turn off the engine with the window down.

If the sound is still there it's not the belts.