Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Electrical issues starting with the radio wire harness

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Old Oct 20, 2020 | 02:00 PM
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Default Electrical issues starting with the radio wire harness

Trying to figure some stuff out on the wire harness for radio on my 98 Accord..

Things I know for sure:

Constant power wire (bottom left, white/green with red stripe);
Accessory power wire (by itself to right, white/red with red stripe);
Headlight dim wire (bottom, second from left, red/black);
+/- for all four speakers (bottom, 3rd-6th from left, blue/green to red/yellow for +. Same position but top/back row for -);

I’m pretty sure I know which is the (main?) ground wire (black/red behind main)... but this is where things get messy... Not sure what the purpose of the blue with silver stripe (two left of accessory wire) and the corresponding black behind it is, as well as the red wire behind the headlight dim wire..

When I attach probe to constant wire, then probe the other wires, I’m getting a connection in places I shouldn’t, such as the other power wires along with the wires I’m not sure of..

This is a bad ground somewhere? Idk where to even start..

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Old Oct 20, 2020 | 09:33 PM
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Default Re: Electrical issues starting with the radio wire harness

Not too be too silly, but what year car?
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Old Oct 21, 2020 | 07:41 AM
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Default Re: Electrical issues starting with the radio wire harness

Originally Posted by newToThisStuff
Trying to figure some stuff out on the wire harness for radio on my 98 Accord..

Things I know for sure:

Constant power wire (bottom left, white/green with red stripe);
Accessory power wire (by itself to right, white/red with red stripe);
Headlight dim wire (bottom, second from left, red/black);
+/- for all four speakers (bottom, 3rd-6th from left, blue/green to red/yellow for +. Same position but top/back row for -);

I’m pretty sure I know which is the (main?) ground wire (black/red behind main)... but this is where things get messy... Not sure what the purpose of the blue with silver stripe (two left of accessory wire) and the corresponding black behind it is, as well as the red wire behind the headlight dim wire..

When I attach probe to constant wire, then probe the other wires, I’m getting a connection in places I shouldn’t, such as the other power wires along with the wires I’m not sure of..

This is a bad ground somewhere? Idk where to even start..
What electrical wiring diagram are you using? The ones in my sig are best.
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Old Oct 21, 2020 | 08:38 AM
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Default Re: Electrical issues starting with the radio wire harness

Originally Posted by DCFIVER
What electrical wiring diagram are you using? The ones in my sig are best.

I have not had much luck finding anything that seems to match up as far as a diagram.. still pretty new to all this so I’m not sure where to look for the diagram.. it’s a 98 Accord ex, and I only know what I know from doing tests with a probe..
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Old Oct 21, 2020 | 12:40 PM
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Default Re: Electrical issues starting with the radio wire harness

See image:



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