I did it myself. The amp is a Alpine PDX-M12 and that cost me $500. The sub is Alpine Type R 12D4 that cost me $175. Box ran me like $30. So roughly $700.
I used the left and right underseat subwoofer wires for the signal to the amp. I used the power antenna wire for a remote turn on switch. Every thing is right in the trunk so installation was quick, easy, and painless
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2023 BMW iX xDrive50 - Blue Ridge Mountain Metallic / Oyster Perforated / Ultimate PKG 2 / Sport PKG
2023 BMW X1 xDrive28i - Portimao Blue Metallic / Black perforated /Shadowline/ M sport / premium package
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