My original AC Delco and speakers are approaching the point where they'll need to be replaced. Starting to have channels drop off when I hit bumps... Anyways, I was looking at radios, and can't really find much in the way of an OEM style replacment. I'll probably end up buying an in-dash CD player of some sort with decent power output for four channels. Are there any brands or models I should stay away from? This vehicle does see the trails every once in a while, and if I get a CD player I'd like to not kill it with rough driving. Also, how hard is it to replace the speakers in the dash? Can they be replaced with anything larger than stock? I don't need anything fancy, 15W per channel would be fine with me. I already know which 4x10s I'm going to get for the rear, just a question of the head unit and the front speakers. Thanks!