http://www.radioshack.com/family/index.jsp?categoryId=4382055&s=A-StorePrice-RSK&s=A-StorePrice-RSK&znt_campaign=Category_CMS&znt_medium=RSCOM&znt_source=CAT&znt_content=CT4379539   you can probably order online if you live in canada.   look on amazon as well. and ebay. and other online...

when you see the photos i have provided, you can see that they just fit without the screws.........   that was the whole point of finding these replacement cables.   they fit in the headphones like they would fit in any 3.5mm holes. nice and firm.

i think i found the solution   http://www.head-fi.org/t/626358/m-audio-q40-studiophile-replacement-cable-found-the-solution

I found the solution.   This is my post: http://www.head-fi.org/t/626358/m-audio-q40-studiophile-replacement-cable-found-the-solution       *Get the 3.5mm aux cables from Radioshack. they have the very skinny tipped cables.   Photos:   http://imgur.com/a/fT2P1#0

I've had m-audio q40 studiophile headphones for about two years now and i have gone through 3 replacement cables already.   yes, i know the pain people. we all went through the same ******** and have to deal with ****ty customer service from m-audio.   i, in fact, sent an email 4 days...