My '94 F150 has a stock radio that also plays cassettes. I was going to change the radio to get the iPod or iPhone connection and when I was looking around in Walmart I saw one of those cheap cassette adapters with the little mini plug coming out of it. It was right next to the radio removal tool
..Anyway, for a couple of dollars I thought I'd try it (I also bought the removal tool because I thought I'd end up changing the radio). Anyway, I put the cassette adapter in my radio and plugged my iPhone to it. It plays great! the sound is super good and with Pandora radio and other internet music stations like that, I have all the music I want for free!!
I can't play CDs, but that's not a problem since CDs are so outdated anyway (I could play them with a CD/MP3 portable player I have too). Better than satellite radio in my book and I can also play podcasts I save on iTunes and all my mp3's. Another great feature is that there is no nice aftermarket radio for somebody to break into the truck for... Nobody steals OEM radios LOL!! I suggest you try one of those adapters before you spend a lot more money and hassle on a radio. BTW, I might be wrong, but I don't believe they even sell the plug-n-play wiring adapters for our trucks... You gotta hack into the wires