So I am having a very stage issue with my instillation. I installed a new Alpine in dash unit and am not able to get any sound out of the front left speaker. I used an OHM meter and I am getting 4ohms out of all speakers but still no sound from front left. I re-installed factory unit and all speakers including the front left work fine. I don't have the BOSE system so this should have been a really simple install. I also switched all the channels around in order to see if the unit is at faulty but that also does not seem to be a problem. I am at a complete lose has anyone heard of this?