A fit problem, wiring problem, and tuning problem can sound or look similar. Work through the matching check below at a modest listening level, and keep the exact pod listing and speaker model numbers at hand.
The speaker does not fit
Check the obstruction: cutout, outside frame, mounting depth, grille, fastener pattern, or terminals. Compare the speaker drawing to the pod listing and trial-fit both sides. Stop before enlarging a hole; cutting a larger opening will not correct a depth, grille, or window-clearance problem. Contact Custom Speaker Pods with the vehicle, pod link, speaker model, dimensions, and a photo of the interference.
Midbass sounds weak
Check that the intended speaker plays and that its polarity matches the system plan. Inspect the mounting seal, loose panel parts, and grille or window interference. Review crossover settings and speaker specifications. Do not assume the pod itself is the cause before checking the installation.
A speaker rattles or buzzes
Find out whether the noise comes from the speaker, pod, trim, window mechanism, or another door part. Test gently and inspect for loose fasteners or contact points. A damaged speaker or rubbing voice coil needs different attention from a loose panel.
Highs sound harsh or vocals sit off-center
Review pillar-speaker level, aim, polarity, crossover, and timing. Change one setting at a time. Reflection from glass and trim can affect the result.