Well it is time to get a new head unit as the old Sony unit is acting up. I am considering two options the first would be to remove the waterproof cover and install an alpine unit in its place. The second option would be to keep the cover and go with a clarion deck. I have a WS 420 EQ so I don't think pre amp voltage matters.We only use an I pod so most important feature is ease of use with the I pod connected. Here is a link to the two units I am considering. Of the two what would you guys recommend ?? Or is the something else I should be looking at ??