I don't know about the fuzzy hole, but I got a great cell phone mount from Pro-Fit (a little pricey though 29.99). It uses screws that exist next to the radio, behind the dash. I use mine for my XM radio but it is recommended for cellphone uses. You should check it out, it makes for a very clean, professional-looking installation.

By the way, if you do look into these, the one you want is the one designed for the Rodeo, since Pro Fit apparently didn't realize the two vehicles share the same dash style.

These are available all over the Internet, so look for the best price.