[Panda-Man]

I recently took my head unit out to replace a 12v relay and now there is something wrong with my audio. These are the issues:

1) At high volume it is very soft
2) Driver's side front speakers has no sound
3) Voice command can only be heard from passenger front speakers
4) Bluetooth phone calls are barely audible

Did I loosen some wires? Everything seems to be the same...

Or

Could it be my amp? I have a stock black hi-fi amp.

Or something else?

Thanks in advance.

[NEFARIOUS]

1. Check your grounding; ensure the ground wire is touching bare metal... Sand the area if needed (if this is an aftermarket radio we're talking about of course).

2. Check the wiring. A cable might've went loose.

3. This is normal; voice commands and calls are intended to be routed to the front only so that the rear passengers aren't immersed into your conversation. My car is the same way.

4. It might be low as a result of the volume and speaker issues.

I'm no expert on head units, but hopefully someone else might have a solution.

[Panda-Man]

Thanks Nefarious, I fixed it this morning, it was a loose cable afterall.