pioneer makes you buy a special adapter in order to have auxilary inputs that plugs into your changer output on the deck and that is what the rb-10 is. i think you are thinking of something else.Go to radioshack and buy one there. Thats what I did. They cost like 6.99 or something like that. It is worth it. Just remember that you have to have the volume up on the CPU too. In order for you to hear sound through your car.
If there are AUX inputs on the deck then thats what e needs to get. But if theres no AUX inputs on it, then I can see where he needs to get the special thing neededpioneer makes you buy a special adapter in order to have auxilary inputs that plugs into your changer output on the deck and that is what the rb-10 is. i think you are thinking of something else.
he needs the rb-10 in order to have aux. inputs so if he doesn't have it he doesn't have aux. inputs.If there are AUX inputs on the deck then thats what e needs to get. But if theres no AUX inputs on it, then I can see where he needs to get the special thing needed