NDM

Hi
I am trying to get an auxillary input converter for may 2003 CL.
I know about the blitzsafe DMX V.1D. It only has one auxillary input which it is ok if I only have one thing to connect, but If in the future I would like to install like a DVD player to my car I will need another input. By the way, is there a rca cable that can convert one input into two so I could be able to use the Blitzsafe, it is just a thought.
I saw soundgate multiple Aux input but I would like to know if somebody has any suggestions.

Thanks in advance.