A4C offers the Kensington SoundWave Sound Amplifying Car Mount for iPhone 3G / 4 / 4S, model no. K39259US, for $9.95 with free shipping. That's the lowest total price we could find by $15. This mount features an amp that doubles the volume of your iPhone's internal speaker. Deal ends March 21.
I've been offering money advice for more than 30 years. Here are the 10 most important things I've learned about making more money and being happier while you do it.