Typical schematic diagram of a radio receiver - shown for early models

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1 - Loudspeaker on the right door
2 — Front right loudspeaker
3 — Rear right loudspeaker
4 — Plug for connecting special equipment RA12
5 — Window lifter connector
6 - Amplifier
7 — Front left loudspeaker
8 - Loudspeaker on the left door
9 — Power cord connector
10 — Antenna power connector
11 - Radio receiver
12 — Speaker balance control
13 — Rear left speaker
2 — Front right loudspeaker
3 — Rear right loudspeaker
4 — Plug for connecting special equipment RA12
5 — Window lifter connector
6 - Amplifier
7 — Front left loudspeaker
8 - Loudspeaker on the left door
9 — Power cord connector
10 — Antenna power connector
11 - Radio receiver
12 — Speaker balance control
13 — Rear left speaker
