What car stereo should I put in BMW ?

[Munn]

I have a 2005 BMW 325i, that comes with the Harman Kardon sound system. I just want to have and aux port, and usb slot in the car as well. Saying this, I don't want to downgrade my stereo plate.

Not sure if I should go the stereo plate direction, or head in a FM transmitter route w/ usb and aux.

 

[BayGarces]

You should take a look at the Pioneer 6300ub. It's a head unit with immaculate sound quality and you can change the colors to match your dashboard. It has both an aux and USB port in the front. And it only costs $150. Best cd player for the price.