Iphone 4s FM transmitter Cradle doesn't require 3.5mm audio cord. Suggestions

i'm looking for an Iphone 4s Wireless FM transmitter Cradle Charger that only requires the iphone to plug into the bottom of the phone.  I don't want to have to use a audio cable to connect the phone from the top to a transmitter. 

This is for my 2006 Acura TL that unfortuanately doesn't come equipped with an aux input.  Right now im using a cradle with a tape in the tape deck that plugs into a splitter that plays the iphone thru the tape selection and powered by the actual iphone plug at the bottom.  This plug has a splitter on it so the tape deck plugs into the splitter and eliminates the ugly use of an audio plug/jack to be inserted into the top of the iphone.  everything charges and sends the music thru the single plug in at the bottom of the phone.

I'd like to eliminate the use of the tape deck but i dont want to use a 3.5mm audio jack that has to be plugged from the top of the phone to the transmitter.  I want it to look neat and to be able to just set it in the doc and play my music.

Im open for any and all suggestions to get an all in one wireless transmitter cradle that even has the long cigarette plug as the anchor.   I dont want to mount it to my windshield because of glare.

I'm sure there are plenty of other people out there that like things tidy neat and simple looking.

I appreciate any tips and suggestions!

Thank you all,

Keith Maples

Hattiesburg Mississippi.