Hey!

I was trying to track down a ticking noise when the fan was running some time ago, I was unsuccessful in finding the noise, I think something is broken.
Anyway, I caused another issue while trying to fix this one!

I stupidly took out the blower filter and blew it all out with compressed air.
This forced all manner of crap into the ducting and now if the fan is over 1/3 of the way, it sounds a hurricane in a forest.
lots of crap blowing around in the ducting.

How do I clean it out? I could use a vacuum or something but I wouldn't know where to start

2003 BA XR6