Author Topic: Original radio wiring  (Read 7440 times)

Offline uprising

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Original radio wiring
« on: February 21, 2019, 02:35:38 AM »
Hi guys,
i removed my bezel and paste some gauges, refurbish the shift indicator and now i try to get the original radio connected. Does the Radio has a cl.30 connection or cl.15? Which color does the cable normally have? Is the wire come from the fusebox or is it going first to the „Headunit“ and from there to the radio? Actually i have only connected the dashspeaker. Can i easly connect side speakers?

I only have a wiring from a 80‘ truck...

Online bd

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Re: Original radio wiring
« Reply #1 on: February 21, 2019, 09:19:56 AM »
Factory wire colors to power the radio are yellow (12v ignition from fuse box), black (ground to cabin sheet metal), gray (panel lamp power from fuse box).  Speaker colors are variable dependent on RPO.

1980 Wiring Manual

What are cl.30 and cl.15 connections?  Is it a monophonic or stereophonic radio?  What are you referring to as the "Headunit?"
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline uprising

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Re: Original radio wiring
« Reply #2 on: February 21, 2019, 12:16:33 PM »
Thanks for your quick answer!
Cl.30 is supply from battery and cl.15 is ignition :)
It is the original from 1975 ;) I think it is a mono radio! But i‘m not sure...
With headunit i mean the whole instrument box. Come the radio wires directly from the fusebox or from another place?

Online bd

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Re: Original radio wiring
« Reply #3 on: February 21, 2019, 02:15:26 PM »
1975 Wiring Manual

Ignition power (15) arrives directly from the "RADIO" fuse of the fuse box through a yellow wire.  The yellow wire should be in a taped harness along with one gray wire (radio illumination) and one black wire (ground).  The speaker wires (usually tan and gray) should run to the radio separately from the power wires.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline philo_beddoe

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Re: Original radio wiring
« Reply #4 on: November 04, 2022, 07:53:20 AM »
Factory wire colors to power the radio are yellow (12v ignition from fuse box), black (ground to cabin sheet metal), gray (panel lamp power from fuse box).  Speaker colors are variable dependent on RPO.


So where is the best and closest place to connect this black ground (radio) wire? Cabin sheet metal??

« Last Edit: November 04, 2022, 08:26:53 AM by philo_beddoe »
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Offline Rapid Roy

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Re: Original radio wiring
« Reply #5 on: November 04, 2022, 09:16:12 AM »
I connected mine to the very bottom of the dash with metal screw.
1974 Cheyenne 10 LWB STOCK 350 W HEI /TH350/AC/4 BBL Quadrajet
Mopar by Birth
Chevy by Choice

Offline philo_beddoe

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Re: Original radio wiring
« Reply #6 on: November 04, 2022, 01:34:28 PM »
I'll try it...
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1

Online bd

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Re: Original radio wiring
« Reply #7 on: November 04, 2022, 01:42:34 PM »
The factory location is the e-brake pedal frame at the left kick panel...





               ...but any convenient bare sheet metal point should work fine.

Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline philo_beddoe

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Re: Original radio wiring
« Reply #8 on: November 04, 2022, 04:20:23 PM »
Ok, found it. Thanks for clarifying!
Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.  Zechariah 14:1