94 TransAm headunit question

[smart-]

Hi, I guess it was covered in a lot of other posts, but I searched and didn't find. Except for one and it was from 2009, I didn't want to resucited an old post, and it wouldn't let me send private message, so here I am with my question.

I have a 94 Trans am. I wan to chaneg the head unit. Found some on eBay. From what I read, the steering Wheel remote buttons won't work if I get a 95 or + radio? is that right?

Also does anyone as the procedure to had an aux-in port for those radios?

Thanks

[smart-]

This is the old thread I'm talking about... http://ltxtech.com/forums/showthread.php?7284-94-96-Trans-Am-with-steering-wheel-controls&highlight=control