Stereo & Electronics - Puzzle

Any guess what is for? Made it today for my amp, headunit install.
Stay tuned the answer tomorrow.

Clue it goes under the hood.

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ram air cooling system for amp?

Well I guess it wasn't a fun idea to post a guessing game. Thanks for trying

FA. It is a mount for the CB and Volt unit.

You have a CB mounted under your hood? Doesn't that make it difficult to talk?

circuit breaker what I meant my bad fuse