I just installed a Pioneer AppRadio SPH-DA120 using a Metra 95-7510. It's mostly working as intended but I have 2 stubborn issues I'm hoping you can help me with.
1. There is a fairly loud hissing coming from all the speakers when the HU is on and even when the volume is set at 0. It's pretty content except sometimes it goes up in intensity for a few seconds and then back to baseline. Like waves on the beach.
The Metra harness is grounded to one of the screws holding the manual shifter assembly. Same hissing with or without that dedicated ground connection.
It's the same on FM and other types of inputs.
It doesn't change when I unplug the antenna cable.
It doesn't change with engine revving.
Could this have something to do with some bad interaction between the Pioneer and the stock amp? Is the gain from the amp too high? I don't don't how to decrease it.
2. The A/C MODE buttons (middle of the 3 climate controls) works fine but no longer "beeps" when changing settings (neither the central round button nor the other 4 around it). Is the Metra kit not supposed to restore that functionality?
Thanks in advance!
1. There is a fairly loud hissing coming from all the speakers when the HU is on and even when the volume is set at 0. It's pretty content except sometimes it goes up in intensity for a few seconds and then back to baseline. Like waves on the beach.
The Metra harness is grounded to one of the screws holding the manual shifter assembly. Same hissing with or without that dedicated ground connection.
It's the same on FM and other types of inputs.
It doesn't change when I unplug the antenna cable.
It doesn't change with engine revving.
Could this have something to do with some bad interaction between the Pioneer and the stock amp? Is the gain from the amp too high? I don't don't how to decrease it.
2. The A/C MODE buttons (middle of the 3 climate controls) works fine but no longer "beeps" when changing settings (neither the central round button nor the other 4 around it). Is the Metra kit not supposed to restore that functionality?
Thanks in advance!
Pioneer Head Unit - lots of background noise
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