Once you get control over the signal you'll be fine
Does the HU have an amp ? if so connect wires to a speaker and turn the volume up to see if you have something in the chain not wired correctly.
One of these two may be your problem ~ DEQ2030, then through an Image IDX-24
Does the HU have an amp ? if so connect wires to a speaker and turn the volume up to see if you have something in the chain not wired correctly.
One of these two may be your problem ~ DEQ2030, then through an Image IDX-24