Delco radio with aux. input added - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Cramitthefrog · 02-17-2011, 10:08 PM

I don't see a problem doing this in a newer radio, you just have to identify the wires that carry the audio signal to the amp.

Cramitthefrog · 02-17-2011, 10:13 PM

Quote:

Originally Posted by Telecasterjoey

I think the radio is a 1980? I took it out of a screwed up truck from the scrap yard. I have an 86 tape player stock radio, and I've located the green and orange wires. My radio is different but I think I can figure it out. Would you mind selling me the part? I think Im going to have a hard time tracking it down. Radio shack doesn't ship to canada

again thanks so much for your help!!!

Just pm me your address and I will send it to you. They are only a couple bucks so no need to worry about buying it, I just hope it works out for you.

Telecasterjoey · 02-17-2011, 10:23 PM

Pm Sent!

allengator · 02-17-2011, 10:30 PM

great idea....

bigd65 · 02-18-2011, 10:57 AM

This is pretty cool. My dash is not cut eather but I am definately not an electrical nerd, there is NO way i could perform that task

motornut · 02-18-2011, 11:23 AM

Quote:

Originally Posted by Telecasterjoey

I think the radio is a 1980? I took it out of a screwed up truck from the scrap yard. I have an 86 tape player stock radio, and I've located the green and orange wires. My radio is different but I think I can figure it out. Would you mind selling me the part? I think Im going to have a hard time tracking it down. Radio shack doesn't ship to canada

again thanks so much for your help!!!

Radio shack we now call the The Source up here
very cool mod ......on the list

West Texas Z · 02-18-2011, 12:12 PM

Very cool mod!!!

Fixwhataintbroke · 02-18-2011, 07:33 PM

i seriously wish i had done this rather than hack my dash!!! I think ill start bending the metal back in place, weld the seems, and perform this trick!

**N2TRUX** · 02-18-2011, 08:35 PM

This topic is an FAQ-"73-87 Delco radio with aux. input added"

JWNathan · 02-20-2011, 01:28 AM

Wow awesome mod! One question though; would it work on an AM only radio? Thanks!
-Jesse

Cramitthefrog · 02-20-2011, 03:09 PM

I haven't tried it but I don't see why it wouldn't. Your just splicing into an audio feed be it am or fm.

motornut · 02-22-2011, 11:25 PM

an am might be a problem mono not wired for stereo
might short out

Telecasterjoey · 03-03-2011, 07:16 PM

Hey buddy I got the input! I was wondering if you could tell me what numbers on the diagram are what?
Posted via Mobile Device

Cramitthefrog · 03-03-2011, 10:37 PM

Glad you finally got it.

Post #1 is the ground. This needs to connect to the stereo body somewhere

Post #2 is the left channel out. This connects to the wire going into the amp board.

Post #3 is the left channel in. This connects to the wire coming from the main board.

Post #4 is the right channel in. This connects to the wire coming from the main board.

Post # 5 is the right channel out. This connects to the wire going into the amp board.

Main board is the one on the bottom, the amp board is the one on the side.

Just think of it this way, when the aux is unplugged the audio signal passes straight through into the switch then out. When you plug it in the contact is broken and the signal from the 1/8 plug is sent to the amp.

Just remember to have the power off when plug and unplug the aux.

Good luck and don't hesitate to pm me if you have any questions.

Cramitthefrog · 03-03-2011, 10:38 PM

Quote:

Originally Posted by motornut

an am might be a problem mono not wired for stereo
might short out

Good call did not even think of that.

sandorjoben · 03-03-2011, 10:53 PM

Quote:

Originally Posted by Telecasterjoey

Radio shack doesn't ship to canada

The Source by Circuit City IS Radio Shack

TheWhiteElephant · 03-04-2011, 12:58 AM

Now all I need is an ipod.

Telecasterjoey · 03-04-2011, 01:40 AM

Thanks man! i'm gonna tackle it tomorrow!

**truckfan** · 03-05-2011, 06:48 PM

subscribed. this is cool.

be careful guys, some of the AM/FM radios are not stereo. I think it needs to say stereo on the front and maybe even have a stereo light.

Telecasterjoey · 03-06-2011, 02:58 AM

Got this mod working! I love it! sounds decent too!

Gary66 · 03-06-2011, 11:42 AM

i bought a rebuilt radio on ebay with this mod done- and i am super pleased with it!!!

Altec · 03-07-2011, 03:23 AM

I have a AM/FM from a '84 Monte Carlo SS I may try this on. I was trying to find a way to keep a factory radio in my truck.

1985-GMC · 11-17-2011, 09:19 PM

Im going to have to do this. First I need to find a radio with "stereo" because the am/fm radio Ive got has one pair of speaker wires for a center dash speaker only I guess, though it looks way more complicated inside.

Nice writeup!

Do you think it would be possible to take one of the three position switches out of a Am/Fm/Cassette radio and putting it in one of these for Am/Fm/Aux. Then you wouldn't have to use a switched aux plug and you wouldn't have to worry about powering off before you plug/unplug the cable right?

Cramitthefrog · 11-17-2011, 11:39 PM

Thats a good question, I think I might try it. I would also like to modify one of the ETR ones if I can ever find one that is in nice shape.

Paniolo · 12-05-2011, 05:20 PM

Very cool mod! I've been searching the internet looking for this! I did it on an 8 track/AM/FM unit. The hardest part was fitting the jack in the front panel location. Finally got it in and the radio indicator jams against it because of the way the indicator is mounted in the door of the 8 track. Oh well, it's only like 89 and below I can't get. Should have just put the jack in the back of the case and run a wire from there. A basic AM/FM stereo would have a lot more room.

I also recommend using some 20 or 22+ gauge solid wire cause it would be a lot easier to solder to those small connections than the 18 gauge stranded I had on hand!

After I did this I added some 350 ohm non polarized capacitors to my little 3.5" front speakers as a high pass filter. Crossover point is about 115hz. Now I want to install an old 10" sub and amp I have laying around. Any suggestions on a source to use as a remote power on for the amp from inside the radio?

Thanks again for sharing this. Love the cost and the look!

02-17-2011, 10:08 PM	#26
Cramitthefrog It's always something Join Date: Jan 2011 Location: Carson City N.V. Posts: 59	Re: Delco radio with aux. input added I don't see a problem doing this in a newer radio, you just have to identify the wires that carry the audio signal to the amp.

02-17-2011, 10:23 PM	#28
Telecasterjoey Registered User Join Date: Nov 2010 Location: Ottawa ON Posts: 514	Re: Delco radio with aux. input added Pm Sent!

02-17-2011, 10:30 PM	#29
allengator Registered User Join Date: Dec 2010 Location: Burleson, Texas Posts: 596	Re: Delco radio with aux. input added great idea.... __________________ Allengator Outta the Blue (my band - available for hire in the DFW area!) 1980 Chevy SWB Pickup (build thread) 1951 Chevy Sedan Delivery 2004 Chevy Tahoe Z71 2011 Harley Davidson Street Glide 2018 Silverado Z71 Crew Cab

02-18-2011, 10:57 AM	#30
bigd65 Registered User Join Date: Mar 2000 Location: Clute, TX. Posts: 1,935	Re: Delco radio with aux. input added This is pretty cool. My dash is not cut eather but I am definately not an electrical nerd, there is NO way i could perform that task __________________ 2004 Silverado Crewcab 1972 Chevy Monte Carlo 2017 Chevy Tahoe

02-18-2011, 12:12 PM	#32
West Texas Z El Mero Mero Frijolero!! Join Date: Mar 2010 Location: Lubbock, Texas Posts: 669	Re: Delco radio with aux. input added Very cool mod!!! __________________ My Toys: 1993 Ford Mustang LX 5.0 2001 Yamaha V Star 650 1984 Silverado > Build Page <

02-18-2011, 07:33 PM	#33
Fixwhataintbroke Enthusiast Join Date: Jun 2010 Location: Graham, Wa. Posts: 192	Re: Delco radio with aux. input added i seriously wish i had done this rather than hack my dash!!! I think ill start bending the metal back in place, weld the seems, and perform this trick! __________________ - Cole 1979 Chevy C30 w/ carb 454. 1992 Chevy K1500 w/ tbi 350. Sold 1997 Dodge Ram 1500 w/ Magnum 360 Sold "Good judgment comes from experience. Experience comes from poor judgment." - George Washington

02-18-2011, 08:35 PM	#34
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: Delco radio with aux. input added This topic is an FAQ-"73-87 Delco radio with aux. input added" __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

02-20-2011, 01:28 AM	#35
JWNathan Registered User Join Date: Feb 2011 Location: Roseville CA/Virginia city NV Posts: 6	Re: Delco radio with aux. input added Wow awesome mod! One question though; would it work on an AM only radio? Thanks! -Jesse

02-20-2011, 03:09 PM	#36
Cramitthefrog It's always something Join Date: Jan 2011 Location: Carson City N.V. Posts: 59	Re: Delco radio with aux. input added I haven't tried it but I don't see why it wouldn't. Your just splicing into an audio feed be it am or fm.

02-22-2011, 11:25 PM	#37
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Delco radio with aux. input added an am might be a problem mono not wired for stereo might short out __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350

03-03-2011, 07:16 PM	#38
Telecasterjoey Registered User Join Date: Nov 2010 Location: Ottawa ON Posts: 514	Re: Delco radio with aux. input added Hey buddy I got the input! I was wondering if you could tell me what numbers on the diagram are what? Posted via Mobile Device

03-03-2011, 10:37 PM	#39
Cramitthefrog It's always something Join Date: Jan 2011 Location: Carson City N.V. Posts: 59	Re: Delco radio with aux. input added Glad you finally got it. Post #1 is the ground. This needs to connect to the stereo body somewhere Post #2 is the left channel out. This connects to the wire going into the amp board. Post #3 is the left channel in. This connects to the wire coming from the main board. Post #4 is the right channel in. This connects to the wire coming from the main board. Post # 5 is the right channel out. This connects to the wire going into the amp board. Main board is the one on the bottom, the amp board is the one on the side. Just think of it this way, when the aux is unplugged the audio signal passes straight through into the switch then out. When you plug it in the contact is broken and the signal from the 1/8 plug is sent to the amp. Just remember to have the power off when plug and unplug the aux. Good luck and don't hesitate to pm me if you have any questions.

03-04-2011, 12:58 AM	#42
TheWhiteElephant God is good! Join Date: Sep 2010 Location: Texas Posts: 689	Re: Delco radio with aux. input added Now all I need is an ipod. __________________ Mando *"It takes a smart man to know when he's stupid." -- Barney Rubble* My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=430367

03-04-2011, 01:40 AM	#43
Telecasterjoey Registered User Join Date: Nov 2010 Location: Ottawa ON Posts: 514	Re: Delco radio with aux. input added Thanks man! i'm gonna tackle it tomorrow!

03-05-2011, 06:48 PM	#44
truckfan Senior Member Join Date: Apr 2009 Location: Lawrence KS Posts: 821	Re: Delco radio with aux. input added subscribed. this is cool. be careful guys, some of the AM/FM radios are not stereo. I think it needs to say stereo on the front and maybe even have a stereo light. __________________ 1981 Chevy C30 440 Holmes 42K one owner miles



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03-06-2011, 02:58 AM	#45
Telecasterjoey Registered User Join Date: Nov 2010 Location: Ottawa ON Posts: 514	Re: Delco radio with aux. input added Got this mod working! I love it! sounds decent too!

03-06-2011, 11:42 AM	#46
Gary66 Registered User Join Date: Jan 2002 Location: anna, Illinois Posts: 308	Re: Delco radio with aux. input added i bought a rebuilt radio on ebay with this mod done- and i am super pleased with it!!! __________________ 2003 2500 HD Crew Cab 1965 GMC K10 1972 Chevrolet k5 blazer

03-07-2011, 03:23 AM	#47
Altec Getcha Pull Join Date: Nov 2010 Location: MD Posts: 691	Re: Delco radio with aux. input added I have a AM/FM from a '84 Monte Carlo SS I may try this on. I was trying to find a way to keep a factory radio in my truck. __________________ '81 K10 454/SM465 '86 S10 Blazer '95 H-D Softail '96 Integra

11-17-2011, 09:19 PM	#48
1985-GMC Chevy Enthusiast Join Date: Jul 2009 Location: Canyon Lake Texas Posts: 2,024	Re: Delco radio with aux. input added Im going to have to do this. First I need to find a radio with "stereo" because the am/fm radio Ive got has one pair of speaker wires for a center dash speaker only I guess, though it looks way more complicated inside. Nice writeup! Do you think it would be possible to take one of the three position switches out of a Am/Fm/Cassette radio and putting it in one of these for Am/Fm/Aux. Then you wouldn't have to use a switched aux plug and you wouldn't have to worry about powering off before you plug/unplug the cable right? __________________ Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) Last edited by 1985-GMC; 11-17-2011 at 09:36 PM.

11-17-2011, 11:39 PM	#49
Cramitthefrog It's always something Join Date: Jan 2011 Location: Carson City N.V. Posts: 59	Re: Delco radio with aux. input added Thats a good question, I think I might try it. I would also like to modify one of the ETR ones if I can ever find one that is in nice shape.

12-05-2011, 05:20 PM	#50
Paniolo Registered User Join Date: Nov 2011 Location: Dallas Posts: 4	Re: Delco radio with aux. input added Very cool mod! I've been searching the internet looking for this! I did it on an 8 track/AM/FM unit. The hardest part was fitting the jack in the front panel location. Finally got it in and the radio indicator jams against it because of the way the indicator is mounted in the door of the 8 track. Oh well, it's only like 89 and below I can't get. Should have just put the jack in the back of the case and run a wire from there. A basic AM/FM stereo would have a lot more room. I also recommend using some 20 or 22+ gauge solid wire cause it would be a lot easier to solder to those small connections than the 18 gauge stranded I had on hand! After I did this I added some 350 ohm non polarized capacitors to my little 3.5" front speakers as a high pass filter. Crossover point is about 115hz. Now I want to install an old 10" sub and amp I have laying around. Any suggestions on a source to use as a remote power on for the amp from inside the radio? Thanks again for sharing this. Love the cost and the look!

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