Alpine Cda-9815?

[Jt321 10+ year member]

Anyone know how to change the treble & bass on this headunit? I cant figure out how to do it. On my stock HU it would let me change the treble and bass, but on the alpine i cant figure out how to change these settings? I could only change it to like "Pop","Rock","News", etc.... these presets came like that from the factory but there isnt a function for like "Custom" settings. Anyone have any ideas?

Thx -John

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[simon21 10+ year member]

press the EQ button, and you should get to the preset EQs. Once you get there, hold down the EQ button for a few seconds and you will be able to change it.