Can someone help an Spanish man?

[atoriecb]

Hi, I am Sergio from Spain.

I have a Subaru Legacy 3.0 automatic spec.b

I have teh GX 201LE head unit with the gps (by cd)

1.- Any knows how I can change the head unit for listen mp3?

2.- Any know how I can connect the ipod (if i can't change the unit)?

3.- How I can update the visual efects from the trip displays?

4.- What cables I need to cut to touch the gps during drive?

Here in Spain is difficult to find aftermarket replacement.

THANKS TO ANY THAT CAN HELP ME!!!