audio problem

[acort]

i just bought a new amp it has a remote that plugs into the amp to turn the bass up and down when i hooked it up in my truck it comes on dosent go in portect but when the bass is turned down everthings fine but when you turn it up the subs go crazy and thump really fast not to the music im not really sure whats wrong my rca's or gound? please help

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[Stel 10+ year member]

What amp is it and how did you set the gains?