Auto Add Product B if Product A is added

[treodude]

Hi VM,

This is a sort of continuation of my previous question http://forum.virtuemart.net/index.php?topic=124551.msg425911#msg425911

Short recap, I need to add money when a product is bought, but this may not be added to the product price, but must be seen seperately.

This was my idea: make that money into a product. So, as the title says, add product B to cart when product A is added.

Any ideas how to do this VM Forum?

Thanks in advance, and keep up the support!

Trevor