I just got the belkin headphone adapter for the iPhone with the monster fm transmitter is amazing!!!

I found a good station and set the right eq and volumn level on my iPhone and its crystal clear

I also don't have my stock 48 inch antenna since I took it off and replaced it with a 8 inch one and its still amazing. I also have the upgraded system from ford in my mustang. It sounds great through the 8 inch woofers and 8 speakers