Yes, the CoolStream CarPro for BMW will work with the Infiniti 2008 E53. But you need to use the CableJive dockStubz+ 30-pin Charge Converter so that the iPod cable powers the CarPro.
The CableJive dockStubz+ is available on Amazon.
The CableJive dockStubz+ needs to be connected to both the 30 pin connector and to the Infiniti 2008 E35 lighter socket by a micro USB cable. The CoolStream CarPro then goes on top of the CableJive. Using the CarPro and CableJive together, you will be able to stream music from your iPhone or Android to the Infiniti 2008 E35 speakers.
The CarPro works with the music controls on the steering wheel of the Infiniti. The CarPro will also display the music that you have downloaded and saved on your iPhone.
It has also been reported to CoolStream that the Infiniti 2008 G37 and 2009 FX35 will also work with the CarPro and CableJive Stubz+.