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2020 Toyota Tundra 1794 Edition, No Volume, No Volume Display


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emberav 
Member - Posts: 2
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Joined: December 15, 2020
Location: Kansas, United States
Posted: December 15, 2020 at 11:47 AM / IP Logged Link to Post Post Reply Quote emberav
I am working on a friends new truck. He had someone bypass the factory JBL amp and wire in a 4-channel. The component front and rear door speakers did not sound good utilizing the factory wiring so I ran new wires to all the doors and direct to the 4-channel amp. After reconnecting battery everything turns on but no volume. Before when the volume knob was turned you could see a number representing the volume on the screen. Now there is no number at all. When the button is pressed it turns off audio so I am guessing the knob is fine. Could the JBL amp have anything to do with the volume and display not working? Any help would be much appreciated.
Thanks.
i am an idiot 
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 15, 2020 at 7:29 PM / IP Logged Link to Post Post Reply Quote i am an idiot
Is the amplifier still in the vehicle and connected?
geepherder 
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Joined: October 27, 2003
Posted: December 16, 2020 at 11:27 AM / IP Logged Link to Post Post Reply Quote geepherder
It wasn't this particular vehicle, but I remember reading that some systems will not give you an output if they don't have a load connected to the amplifier. You may need to add load resistors to the factory amp. PAC-audio has these in both 47 and 33 ohm varieties.
My ex once told me I have a perfect face for radio.
emberav 
Member - Posts: 2
Member spacespace
Joined: December 15, 2020
Location: Kansas, United States
Posted: December 16, 2020 at 11:43 AM / IP Logged Link to Post Post Reply Quote emberav
Yes the amp is still in the vehicle. That would make sense being the door speaker I rewired to a aftermarket 4-channel amp was the last speaker connected to the factory amp. I am not familiar with the PAC-audio load resistors. Would these just vonnect to the output of the amp to the door speakers? Thanks for the help guys.
geepherder 
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Joined: October 27, 2003
Posted: December 16, 2020 at 12:54 PM / IP Logged Link to Post Post Reply Quote geepherder
Yes, just connect them to the outputs of the factory amp.
My ex once told me I have a perfect face for radio.

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