Difference between FD2 models?

[LetsDuDiss]

Thanks for the reply dudes!
And a side question, is the head unit easy to replace?
I'm really sick of using an fm transmitter for my music.

Nah bro, its a pain in the ass. You will have to buy a double din face which is like $150.

There is an alternative unit (just a small box) that you can buy for about $70 that plugs to a jack behind the stock head unit. You can choose to buy a bluetooth or iphone compatibilty or whatever you want with that unit

Don't use FM transmitter. That's trash in your ears

For me, I just keep my head unit stock as a rock. Then I bought an iPhone cable that has both USB and AUX output and made a little DIY dock. Then I plug my USB to the cig lighter and AUX to AUX jack. And there I have my functional iPhone compatible headunit. Kinda LOL