Need help with rather unique problem with wiring and amp.

[PittViper 10+ year member]

Hi,

I installed a ppi 650.1 in my car using the high level inputs from my existing factory stock sub. I have a 2013 Kia Optima with Infinity sound system. The factory sub is an 8" dvc sub.

It seems that the high level inputs also turn the amp on, with no need for with turn on lead being used. Fine.

But, I have a need to shut this amp off when driving sometime. When I turn the factory audio/nav system audio portion to off, the amp remains on.

This is not desireable to me because I am an amateur radio operator with a transceiver in the car. If the amp is on when I key the mic, I get a loud thump through the alpine 12 type R dvc sub.

The only way I can eliminate this is to turn the amp off.

But, like I said, even with audio off, there seems still to be voltage on the factory sub output, enough to turn the amp on.

I tried using the blue turn on wire at the same time, thinking that it might be then used as the turn on instead of the high inputs, but still no go with the amp turning off when I turn audio off.

Please help...

Sincerely,

Jason Tsangaris

kc3ixi

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[trumpet 5,000+ posts]

Switch off one of the input signal wires.

 

[PittViper 10+ year member]

Why, out of 4 input wires plus a ground, will one shut the voltage off to all of the wires. I am not doubting your correctness, I am just trying to understand. Thanks

 

[adulbrich 5,000+ posts]

You would need multiple switches on the input wires, because one channel with power would kick it on. It sucks, but I can't think of a better way to do it.

 

[adulbrich 5,000+ posts]

Actually, you could get a line output converter to change the high level wires to RCA inputs. Then you could just use a switch on the remote turn on wire

 

[PittViper 10+ year member]

Actually, you could get a line output converter to change the high level wires to RCA inputs. Then you could just use a switch on the remote turn on wire

Excellent idea, and I was thinking the same earlier. But my earlier thought was to use the loc and rca inputs, and that alone would eliminate the tx thump. But I see I would need to do this in tandem with the switch on the turn on. Yes, I believe that would work! I even have the loc, but, now I just need time to do it, lol. I more than likely will try this, but if anyone else has any other ideas, feel free to chime in...