F'liner Columbia speaker size????

In mine they are 5.25", I went to ChinaMart and bought some Sony speakers
that size and they fit right it, sound really nice also..

 

Just measue across the speaker opening in the door. Then go buy and install. IF YOU are unsure on the polarity just use a volt meter. Wouldnt wana ruin new speakers would ya? Good speakers go along way but your deck is your sound processor so a good deck can make ok speaker sound good but not great. If its your truck and not a company i would spring for a new deck and speakers and run the wires yourself. If you have any more audio questions just ask, its a hobby of mine.

 

you won't ruin speakers by wiring them backwards. if they're both backwards everything will be cool. but if only one of them is, they'll be going push-pull instead of pushing the air at you, and you'll get a weird phasing effect (that most people don't even notice.)

 

On this very topic, has anyone replaced all four OEM speakers in a current (2016) Cascadia? I've had the grills off, and while they don't look crummy they sure seem weak, even at low volumes. (Weak as in frequency response, on the upper highs and lower lows). It would be a snap to swap them out.