I have an 03 mustang and this is what the audio unit looks like:




Do I have to buy a double DIM head unit, or can I get something to fill it along with a single?

 

double DI-N headunit. I believe there is a kit if you do not want it, or you could probably easily swap out your dash for the 2 single din openings as most people want the double din for the nicer nav and video units

 

Yeah I wont be able to afford a NAV unit like that anytime soon and just need to be able to connect my ipod to my car stereo. Where could I get a kit like this?

 

any car audio shop should have it, or just look and see if there is someone that wants to trade dashes with you.

 

not sure if its just where i went but there was only 1 mounting bracket for 03 mustang. if you want to put in a double din u just snap of the middle piece, if u want single just keep it as is and put a pocket in 1 of the 2 slots.