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My car has a MMCS system and I am adding an amp and High to Low Level Converter to change the original speaker wire to RCA plugs for the amp.
From the amp there is new speaker wire to the speakers so no original wire from the amp to speakers.
Orignal speaker wire has been cut and routed to the High to Low Level Converter.
Original speaker wire were cut and re routed, Rears just down below the rear door hing behind the seat belt,
and the fronts just where the door loom comes through the door hing beofre the plug.
Amp has power, yes
I only have the R/H speakers installed at the moment.
PROBLEM 1 - (I havn’t had much time to fault find yet.)
OK When I first put power on there was like this horrable pulsing noise WA WA WA WA noise
When you wriggle the loom behind the radio it goes away! Well after it makes some crackling sounds first.
Problem 2 – Both Front and rear R/H speakers are working, move the balance all the way to the rear and both stay on?
Move the balance all the way to the front and they both go off and another horrible noise a little bit like the first one but more of a “ti” pulsing sound than a “wa”.
I can make the noise lauder by turning the amp gain up but turning the volume knob does nothing.
I’m thinking there is an exposed wire somewhere behind the radio?
Is there a factory cross over box somewhere?
Help
From the amp there is new speaker wire to the speakers so no original wire from the amp to speakers.
Orignal speaker wire has been cut and routed to the High to Low Level Converter.
Original speaker wire were cut and re routed, Rears just down below the rear door hing behind the seat belt,
and the fronts just where the door loom comes through the door hing beofre the plug.
Amp has power, yes
I only have the R/H speakers installed at the moment.
PROBLEM 1 - (I havn’t had much time to fault find yet.)
OK When I first put power on there was like this horrable pulsing noise WA WA WA WA noise
When you wriggle the loom behind the radio it goes away! Well after it makes some crackling sounds first.
Problem 2 – Both Front and rear R/H speakers are working, move the balance all the way to the rear and both stay on?
Move the balance all the way to the front and they both go off and another horrible noise a little bit like the first one but more of a “ti” pulsing sound than a “wa”.
I can make the noise lauder by turning the amp gain up but turning the volume knob does nothing.
I’m thinking there is an exposed wire somewhere behind the radio?
Is there a factory cross over box somewhere?
Help
