1998 e320 radio static add an iphone connection

[bostonblackie]

I was given a 1998 E320 MB wagon. I really like driving it and the room in the back is great. The car has a multi changer CD player located on the left side rear and an old analog cell phone in the center console. There is one thing that I bugging to no end and that is the static on the am side on the radio. I have been browsing the web and it seems that this is a common problem. It appears that the antenna is built in to the front windshield. I learned that there I an antenna amplifier located behind the C pillar and I might look there of corrosion. So my first question is can someone point me to somewhere where I can learn how to get to the antenna amplifier. Since the MB is a 98 that means it is non fiber optic, which means that there is not much that can be done to up date the cell phone. I would however like to connect me iphone to the radio. I read about a product by US SPEC and sound like it might do the trick. I am a DIY type so could someone point me show me how to remove the radio? Thanks

Bostonblackie