A/C Stink - Where/What to Buy?

[ibfwm]

I'm having problems with "stink smell" coming out of the A/C in my X5.

I have an activated charcoal cabin filter on the way which I'll be installing, however, I think it would be a good idea to also do the "bug bomb" that's been recommended in the past.

Can anyone recommend where I can purchase the fogger type "bug bomb"? The only place I can find it is on the net in the UK and they don't ship to the US.

BTW - I've also read that some people have sprayed Lysol directly into the outside air intake under the hood - anyone tried this?

Which way is the best way to go to get rid of the stink - bug bomb, Lysol, other ideas?

Thanks in advance.