[wp-hackers] Custom Taxonomy RSS feed link in header

[Aero Maxx]

Hi Everyone,

Have only just noticed that there is no rss feed link to the custom 
taxonomy I have created on my site, is there an easy to include this ?

I would like to have it as follows if at all possible.

When on the custom post type url and showing all posts from all 
taxonomies, I would like all the rss feed links for all taxonomies to be 
in the header, but when on a single taxonomy then only show the rss link 
in the header for that single taxonomy and not all of them.

I have done a bit of googling, and found I can use the add_action to add 
things to wp_head, i've got all the rewrite urls done also for the feed 
links I just now need to figure how to know I am on a custom post type 
to show the feed links, and also how to know I am on a custom taxonomy 
to show the single link.

If anyone is able to help with the final bit I would be most grateful!

Thanks
Daniel.