Question for those who know radios
Hey guys, you all helped me with my cluster issue so here I am with another electrical thing.
Thanks a lot for the help. Installed a JVC KW-R910BT doubin din because my stock radio's lights were out and I wanted bluetooth. Bought this wiring harness adapter: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 Soldered/shrink tubed it to the radio's plug. Removed stock amp and plugged unit into two plugs. Radio works perfectly across all inputs when truck is in accessory. Plays songs fine all the way through. Once you start the truck, the speakers all cut in and out together (no sound) for really brief moments during a track. It happens in spells too about 45 seconds apart. Little 0.5-1 second cut outs but plenty long to make it really annoying. The radio remains powered during the cutting in and out episode as the screen and lights are still on - just choppy sound. I put ferrite cores over all the radio connections to prevent EMI from the ignition system - no change Could it be the antenna plugs? The new head unit had only one antenna port which I plugged the larger one into. The other I taped off and left unused. Could that be causing interference? I can't imagine it would be an alternator issue - my truck makes 13.9-14.2v consistently. Running out of ideas. Thanks again! |
Sounds like there's a short somewhere along one of the speaker wires. Is it happening on all speakers? To answer that, try panning/balancing it to one speaker at a time and see if it's all speakers that it's happening to, or just one particular speaker.
Do you have a seperate amplifier running the speakers? I ran all new speaker wires to the doors from the aftermarket amplifier I've got under the driver's seat. It could be the power to the amplifier that's shorting momentarily or a bad amp. |
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The amp is in the head unit I would imagine since I removed the stock amp. All original speaker wires. Everything works perfect with truck not running Thanks |
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I will do that, just unsure why it would work perfect when key is in accessory (on, but not running)
No one has had this issue when adding an aftermarket radio to a third gen? There were 2 antenna plugs going to stock HU, and only one slot for the larger one on the JVC, do they need to be combined or something? |
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As for the 2 antenna plugs, there are actually 2 antennas on these rigs. One up front, which is obvious, and one in the rear passenger window. If you look along the edges of that window, you can see what looks like heater wires similar to the rear window. This is actually a radio antenna. |
I Understand
I don't see how it could be a loose connection because I did not mess with any speaker wiring and it was all working fine. I soldered the connections - not crimp so not sure how they could be loose/jiggling? So having the other antenna plug just sitting back there taped off is harmless? There are 2 power wires that go the radio - the red and the yellow. Are they for power with engine running and power without engine running? Could the one for engine power (not just battery) not be beefy enough? Thanks! |
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I just matched up the colors to the harness in the link above - could switching the yellow and red be beneficial? Maybe they were miscolored?
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I would try different inputs: cd, radio, aux., USB, whatever you have available, to rule out an issue there. What have you tried? That said, when I install aftermarket units, I prefer to install my constant power direct to battery (with an inline fuse). I don't think it will help, but it is still better practice. Another thing to try is an additional ground wire from the HU to the chassis. Bad grounding is often the source of electrical weirdness. |
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Zero change across all inputs, I tried AM, FM, bluetooth, AUX, etc Guess bad ground is the most likely culprit? |
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Alright I'll buy a cheap 40 dollar ebay double din and see if that works.
I can't help but think it wouldn't be a bad ground because that ground wire connected to the old amp and worked perfect. |
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