Re: Help with aftermarket stereo Mach460
so you get Highs out of the rear but no bass? Or they aren't working at all?
I'd double check that wiring didn't change if you used the old harness. Then make sure all the sub stuff is off and that there isn't some kind of bass blocker setting
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03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc...
'12 F150 FX2 Supercrew with Ecoboost daily beater
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