SUB INSTALL - No sound signal to rear speakers

[itsmrgrillini]

Hey all, I am adding a powered sub and 2 speakers (on a seaparte amp) to my sound system. I have a 2012 1.8 hatchback ltz (yeah that exists lol). I was informed of tapping into the rear speaker sig al under the driver side kick panel. I got my remote from the centre console outlet. After the install I have power and very low volume output from both the sub and the speakers. Both amps are getting 12v and have been previously tested.
My theory: because I am not supposed to have rear speakers, the preset volume is at 1% and I cannot raise it (no fade option in stock radio). Can anybody tell me if this is true? I checked if the wires are reversed positive and negative, it is not the case. I simply have very poor signal. By the way, I tried converting the signal to RCA but I also tested it with direct wiring to the hi input built into the subs. Help!

 

[carsNskis]

LTZ should have 6 speakers, do you?

Which wire colors did you tap into?

Did you try pulling a signal from the front channel?

[emoji593][emoji809][emoji472]

 

[TurtleOverlord]

My 15 LS came with no rear speakers.

I put some in and they seemed to be at the same volume as front.
No fader option either.

 

[diazmjd]

What kind of line out converter are you using? It's probably a signal issue. I use an audio control, it was $100.

 

[Hectic]

The rears have a low signal to them, if you didn't have rear speakers stock, I suggest you switch to a radio that is meant for the 6 speaker system, it should rectify the issue of a proper signal.

The rears are known to be quiet and are more of a filler in 12-16.

If getting a different radio isn't an option, tap into the front speakers.

Also make sure you adjust the game on the LOC and the amp.

 

[diazmjd]

Another option is just use the front signal and bridge it left and right. It's not ideal, but it's free.