Originally Posted by averagewhiteboy
I understand that. But it's more cosmetic for this than actually for seeing..
cosmetically speaking the overlays work out better than yellow hid fogs, if you didn't want to use the overlay you could have the fog light lenses replaced with yellow ones.
for example of pioneer 4400 and 8400 see the thread below
both setups have ipod /iphone connectivity, iphone 5 you have to connect via bt, aux, usb, sd card, etc. Only thing not added is sirius/xm, and sat nav since I travel to many countries so mobile gps wins always.