Speaker upgrades
Door speaker replacement, component sets, tweeter placement, and crossover mounting.
Car audio installation services
Each service is handled with measured wiring, fuse protection, clean panel routing, and a final listening check.
Subwoofer systems
Custom trunk boxes, powered subs, enclosure tuning, and bass level control.
Amplifier installs
Mono and multi-channel amps, power kits, ground checks, and gain setup.
Sound damping
Door, floor, and boot damping to reduce vibration and road noise.
Contact Coarse Sound
Request a quote for installation, wiring repair, or a full car audio build.
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