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post #1 of 7 (permalink) Old 07-29-2018, 02:45 PM Thread Starter
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Underglow Lights

I am seeking help with trying to figure out the wiring a car shop did for my underglow lights. Are there any wiring gurus that can help me? My ultimate goal is to rewire for a Bluetooth controller instead of the off/on button currently installed.
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post #2 of 7 (permalink) Old 07-29-2018, 03:00 PM
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Quote:
Originally Posted by Stuntgoat95 View Post
I am seeking help with trying to figure out the wiring a car shop did for my underglow lights. Are there any wiring gurus that can help me? My ultimate goal is to rewire for a Bluetooth controller instead of the off/on button currently installed.
Your best bet would be to trace the wires from the on off switch, or use the power and ground from the current on off switch. Its 50,000 ways to wires simple things like that on these vehicles. More wrong than right.

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*2014 M6GT, Maxie G, stock as she can be.
*2009 Mazda 3 Sport - Sold
*1993 Mazda Protégé, Sell Pending*
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post #3 of 7 (permalink) Old 07-29-2018, 04:59 PM Thread Starter
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Did that. It goes back to a Relay switch they installed. Going backwards - the on/off switch gets it power from the emergency break (had this idea to have them only operate when the brake is engaged...but find myself using the lights when driving). Anyway, the black wire is cut from the source (the relay)...it picks up at brake wire to the switch. The red wire is unbroken from the source and connects to the on/off switch. The red/black wire is tired to a black wire coming out of the relay. (Note - if I ground the black wire out of the relay the lights come on). There is a single red wire that comes off the underglow wires that is tapped onto a yellow wire which is connected to the relay. There is also a blue and white wire connected to the relay.
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post #4 of 7 (permalink) Old 07-29-2018, 05:03 PM Thread Starter
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post #5 of 7 (permalink) Old 07-30-2018, 02:22 AM
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Quote:
Originally Posted by Stuntgoat95 View Post
Did that. It goes back to a Relay switch they installed. Going backwards - the on/off switch gets it power from the emergency break (had this idea to have them only operate when the brake is engaged...but find myself using the lights when driving). Anyway, the black wire is cut from the source (the relay)...it picks up at brake wire to the switch. The red wire is unbroken from the source and connects to the on/off switch. The red/black wire is tired to a black wire coming out of the relay. (Note - if I ground the black wire out of the relay the lights come on). There is a single red wire that comes off the underglow wires that is tapped onto a yellow wire which is connected to the relay. There is also a blue and white wire connected to the relay.
What color wires are connected to which numbers on the relay? 85. 86. 87. 30

85 Ground (Black)
86 Trigger/Switched 12v (Prob Blue White, aka remote)
87 12V Out/To UnderGlow
30 Constant 12v In (Prob Yellow)

More than likely, it wasnt getting power from the parking brake. It was completing the ground for the relay to operate.

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*2014 M6GT, Maxie G, stock as she can be.
*2009 Mazda 3 Sport - Sold
*1993 Mazda Protégé, Sell Pending*
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Last edited by 93blkongreenpro; 07-30-2018 at 02:26 AM.
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post #6 of 7 (permalink) Old 07-31-2018, 05:10 PM Thread Starter
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Will get the numbers on Saturday. Completing the ground makes sense.
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post #7 of 7 (permalink) Old 08-11-2018, 03:15 PM Thread Starter
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Took me an extra week. See pics. The red wire bundle is from the underglow/wheel rings. The bundle is crimped to a single red wire that flows through a fuse. There is a red wire out of the fuse that connects to a blue wire that goes into the relay.
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