Aftermarket head unit produces no sound?

lliw06 · 2024-02-05T09:08:26+00:00

I bought an aftermarket head unit because the stock one had no Bluetooth or aux and that is a must for me. I had recently installed dual 12s and wired those correctly so I'm familiar with wiring in this specific vehicle. I cut the wires from the stock head unit harness and spliced them with the wires from the new harness and head unit. I didn't buy a harness adapter or anything like that so it's straight from stock wires to aftermarket wires. The new head unit turns on and works perfectly, yet there is no sound. I'm certain that I've wired everything correctly because I have triple-checked the wires. I'm just trying to figure out why there is absolutely no sound coming from this new HU.

2003 NISSAN FRONTIER

200,000 MILES

AL514

CAR REPAIR CONTRIBUTOR
5,502 POSTS

Here are the two Audio Flow Charts for diagnosing audio issues. Run through these are see if you're missing something.

Images (Click to enlarge)

Feb 8, 2024 at 1:18 PM

AL514

CAR REPAIR CONTRIBUTOR
5,502 POSTS

refresh this page. I just posted the trouble flow charts for audio issues.

Feb 8, 2024 at 1:19 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.