Hi I'm new and would like some help I bought a ford fg xr6 50th Ann and I only have the 4 speaker stereo and it's not that great and I was looking at the alpine X series I don't really want to get a headunit just speakers , amp n subby will this still produce good quality sound from the ICC which is the colour screen with the amp and does anyone know any good places in Melbourne were I can get the install done or does anyone on this forum able to help me with the install I've never done anything like it so I do not have a clue how to install it and one more thing what Size speakers are the best to get, 5 1/4 or 6.5 inch . Thanks in advance.