P8400 Aftermarket deck HELP NEEDED WITH WIRING

[iamkyle]

I have a beatsonic wiring harness and the radio antenna thingy

I'm a little embarrassed that I'm having difficulty with the install but when i plug in the head unit I'm only getting sound out of the speakers on the right side of the car. So I'm looking for help getting sound out of all the speakers...


2 purple wires which i believe i don't need.... the instruction booklet says there used in place of the solid green wires if i have a sub of 70W or higher




here's a picture of the layout


focusing on the YELLOW wires. I attached the mute wire which is yellow and black to one of the 2 yellow wires on the beatsonic harness



black ground wire which i attach to the metal of car



blue wires. I attached the blue and white wire to the beatsonic blue cord which i believe is to power the AMP, the second blue one is attached the the antenna.


reverse gear signal purple and white wire. Not sure what to do with this one


Here's the last one which confuses me. the first red connection is strait forward but im not sure if i need to use the second red output.


With the other wires it seemed strait forward i just copied the colours and yes my wiring is sloppy.


thank you.

[SVXdc]

You do need the PURPLE (VIOLET) wires. Connect all 8 speaker wires (4 pairs) from the Pioneer AVH-P8400BH harness to the respective colors on the Beat Sonic harness.

If the GRAY and WHITE pairs were connected properly, you should be getting sound from all of the front and door speakers. So you may have a hidden problem with the WHITE wires too.

The Pioneer's mute wire (YELLOW/BLACK) is not needed. You should disconnect it from the YELLOW, and insulate the end of the mute wire.

The BLUE wires are good. Yes, the FR-S and BRZ have a factory amplifier that drives the door speakers. Your wiring has the Pioneer's amp remote turn-on connected to both the car's speaker amp remote control lead and the car's antenna booster amplifier.

The extra branch on the RED wire (as well as on the YELLOW) are not needed. I'm guessing Beat Sonic provided them for other accessories you might want to add later (e.g., radar detector, Pioneer's optional navigation module, etc.).

Reverse gear wire isn't required until you add a rear view camera. The car's signal is on the factory 28-pin harness (which you're currently not using). That harness also has the leads from the factory 3.5mm aux jack. See this post.

Have you added a subwoofer? Pioneer's notes about the VIOLET and GREEN wires are for when you want the head unit to drive a plain (unpowered) subwoofer speaker directly. You would forgo the ability to drive the car's rear speakers.