Freelander 1 Becker Radio/Sat Nav HSE 2004

pm1961 said:

Fortunately, it has been plug and play so far..... Outputs to all speakers.... Including the sub..... The HK amp under the seat is still doing it's bit and it's responding to the tone settings on the head unit...

Early days, but looking good so far....View attachment 214069

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kernowsvenski said:

So you didn't need to connect up an extra wire to supply the amp as far as you know?

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pm1961 said:

No, I did nothing other than plug the new head unit straight in....

In trying to unravel how the system is configured with Nodge68, it became apparent that the head unit itself is providing an amplified main speaker output. Whether the main speakers are further amplified by the amp under the seat is not certain. What is certain is that it must tap the main speaker output and provide the amplification for the sub, because there is no provision at all at the head unit for this to happen directly.

Attached is my sketch of decoding the pinout on the plug into the amp under the seat.

If you can see through my scrawl;

Power is on 5
Gnd is on 26

View attachment 214716


You might find that even if that amp doesn't provide any further amplification to the main speakers, it may still need to be powered to allow it to pass through the device......

I didn't investigate the source of the power on pin 5, once I'd established that it was present.... Hope that helps....

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