The drivers door is usually the one that is opened and closed most - unless it was a taxi once - so if a speaker wire was going to break it would be there I am guessing.
Well if you have command fitted to your car you can alter the sound coming out of the speakers. it is in audio balance and fade,the fade is if you want the front speakers to be louder than the back ot the other way around.
If you do not then maybe take the door trim off bot the front doors and swap the speakers,it may be that one speaker has blown,and so all you would need to do buy a speaker
If you do not then maybe take the door trim off bot the front doors and swap the speakers,it may be that one speaker has blown,and so all you would need to do buy a speaker
PS I got the radio linked to my phone, after days of trying and re trying up comes the numbers on my phone to link, put same numbers into the radio, bingo, although why it connected is anybody's guess, one job sorted, now the speaker.