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Old 6th February 2023, 08:31   #5
SD1too
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

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Hi Martin,

If I've understood correctly, you want to disconnect the existing Philips radio receiver (in the spare wheel well) and the HK power amplifier, replacing them with your aftermarket unit. You therefore want to trace the speaker wiring from the HK power amplifier in order to transfer it to the output of your aftermarket unit.

Assuming I've got that right, RAVE shows the door speaker wiring (each mid-range and tweeter is wired in parallel from one channel) on an 18 pin white connector C0492 at the HK power amplifier. The colour coding is as follows on each numbered pin:

2 LH rear earth, black/red
3 RH rear earth, black/orange
4 LH front earth, black/slate (grey)

10 LH rear signal, black/brown
11 RH rear signal, black/green
12 LH front signal, black/white
13 RH front earth, black/blue
14 RH front signal, black/purple

These wires then all pass through a further connector on their way to the door speakers: C0395 (black, 17 pins) from the HK amplifier mated with C0981 to the speakers. The colour codes don't change across this connector. What's more, it's conveniently located behind your current hi-line navigation/audio LCD screen (the bordmonitor). Well, that's what RAVE says anyway!

So if you can find a way of connecting the door speaker wires on C0981 to the output of your aftermarket unit you should achieve your aim, hopefully!

Simon
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