anyone seen this? ipod text AND xm text with this adaptor
 

i dont want to be the first one to get one of these. they say that you can keep both ipod text and xm text.

http://www.autotoys.com/x/product.php?productid=10496

there are two adapters like that, but you can only see the text from one of the two devices, not both. it says you can keep XM, but nothing about having two inputs with text.