I have a 1997 Toyota Tacoma and thinking about replacing the front factory speakers. I think this truck has some issues with speaker depth. I did a search on Crutchfield and it did not bring polk speakers up as a possible replacement. Maybe this is due to the fact that the polks are deeper. What problems should I expect when installing speakers in this truck and what should I look for when buying speakers. Does anyone know the max depth of speaker I can use? The diameter is 6 1/2".