Coupe speaker wiring

[Lopez90]

Hello!

Gonna install blaupunkt bremen sqr headunit in my coupe.

Got the car without any headunit.
I'm trying to sort out the wiring to the speakers since im gonna install a amp + sub with the head unit installation. I seem to only find the two speakers in the front from the headunit connector. Found the cables from the rear speakers underneath the backseat, but i'm missing the cables to the side panels in rare seats. Thought i was gonna ask here instead of ripping the side panels out.
Is there a rear amplifier on coupes?

[K Simmonds]

No rear Amp on Coupes, the wiring should run to to the speaker plug.

[Lopez90]

Only 4 wires on the speaker plug. +/- to both front speakers

[VW-1964]

On my B3 Coupe there is an additional connecter for head unit, that connects the rear speakers. My car have the Nokia rear speakers with a small build in amplifier. New head units don't have this connector, but found an original Audi Delta radio, but as the speakers are completely trashed from age, the sound is still horrible. I will most likely rewire and replace all the speakers once it's ready to get back on the road.