Audi a3 8l Rear speakers and sub dont work

[fico19tdi]

Hello i saw this forum on google and I am looking to fix my rear speakers and subwoofer speaker in the trunk

I bought new radio JVC, on the old one i got same problem
i installed new speakers and they dont work
all fuses allright, checked wires and radio settings and its okay

only front speakers work for some reason..
Can anyone help me fix this, i dont have any unconnected wires, everything fits perfect fine and I still dont have sound on rear speakers

thank you so much for help

 

[tcg]

You may need to power the Audi amp and rear speakers or have the wrong adapter cable, there are two different ones. Have a look at this...

Rear speakers not working (non bose)

First of all I know there is loads of these threads and im sorry lol. I bought the car with an aftermarket JVC radio and I knew before I seen the car the speakers wont be working anyway I bought it few month ago and only now just got round to having a look at it. So I know the rear speakers...

www.audi-sport.net

 

[NHN]

Could be a faulty amp if it's half amp fed.

As it happened on the original, it's leaning towards amp or wiring tbh.

 

[fico19tdi]

Could be a faulty amp if it's half amp fed.

As it happened on the original, it's leaning towards amp or wiring tbh.

where is amp located?
I dont have wrong cables becouse it fits great with factory cables

thank you

 

[NHN]

It may fit fine but maybe the wiring has a fault.

 

[Farmor00]

where is amp located?
I dont have wrong cables becouse it fits great with factory cables

thank you

amp is located right side trunk, same as sub but opposite side essentially.

 

[SoljahofSensi]

Ifrc if you have full bose then the wrong adapter can mean no sound from rear.