should not matter as long as all of them are the same If the front and rear are out of phase, should not matter a lot as they are different distances from your ears and therefore the sound will reach your ears at a slightly different time anyway.
You could check the dash speakers and see how they are wired
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2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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