I don't have an aux import in my car! What the next option?

I have a 2000 Volkswagen beetle! It has the car port thing. But I'm used to an aux line in. Is there anything I can get that I can easily play mine iPhone 4 on? I don't want to have to require my stereo or anything with wires!

You'll have to purchase an FM transmitter. You can find them at Walmart or any other store that sells electronic accessories.

Buy a new headunit?

The factory Volkswagen beetle radio comes with a plug for the external CD changer, you can remove the changer and use the plug on the radio for an iPod interface or auxiliary input this are NOT FM or wireless, direct connection to the vw radio
If there's a CD changer or if the cable is in the back use that to add the Volkswagen auxiliary input interface

http://www.oemautosound.com/pc-206-176-volkswagen-cd-changer-interface-1998-to-2004.aspx

If there's no cable in the trunk you can buy an aux interface for the back of the radio or use the iPod interface for Volkswagen radios
http://www.oemautosound.com/pc-243-176-usa-spec-pa11-vw6-volkswagen2006-2007-to-ipod-interface.aspx