Ive got an 02 i35 and it seems like the only speakers playing are on the right side. The right side is very clear/ pass side. The driver side is not playing at all seems like. Ive replaced both the driver side door speaker and the tweeter and same thing. Is this a headunit issue or a relay?

 

Did you check the Fade and Balance of the sound equalizer settings? This can be found when toggling the Bass and Treble to adjust the sound quality. Your post didn't say this, but if you did then ignore my initial response lol. The 5.5gen Bose headunits for some reason have been known for being quirky. Did you check the headunit itself to make sure all wires are properly secured?

 

Yeah the settings are set at zero on the equalizer, im gonna pull the radio out today to see if something is loose.

 

you didnt specify what source or input is doing the right side only output. if it is only CD it is definately the bose headunit that is shot not your speakers or wires. , if it is all sources radio, tape, cd, then its not bose unit.