Adding an Aux input to the GL1500 radio


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nperry
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Adding an Aux input to the GL1500 radio

Postby nperry » Sat Mar 12, 2011 4:17 pm



How I added an Auxiliary input to the radio on my 1991 Honda Goldwing GL1500 Aspencade

After studying the information at the following website:

http://www.sheriart.net/honda/



I decided to try the alternative method suggested at the bottom of that page. This involves connecting the Aux Input to the cassette side of the Honda radio. This method made sense for me as it does not involve any desoldering and no relays or switches need to be added. I have limited experience with electronics and wanted to limit the risk of damage to my radio as much as possible. I am also lazy and cheap.

I would suggest studying the aforementioned website in detail. If you are not comfortable with soldering delicate wires, you might want to try some other method to add Aux Input to your Honda radio, such as a FM modulator, cassette adapter, or professional installation. Check out the following links for more info.

http://goldwingtech.info/auxradio/

http://www.sierra-mc.com/auxiliaryinput.asp

I prefer a direct connection for a cleaner audio. This is how I did it.

To complete the project I needed a cable with a 1/8” stereo plug on one end and a pencil point soldering iron. I purchased a soldering iron at Radio Shack. For a cord I cut the cord off some old headphones.
Old headphones
Old headphones


This cord seemed pretty tough and I like the angled plug. Use a continuity tester to verify which wire is used for right, left, and ground.
Cord with label
Cord with label


Remove the radio from the bike. My owners manual included instructions on how to do this. Remove the cover from the back of the radio. Remove the board from the radio. Locate C139 and C140.
This link has details on removing the board from the radio: viewtopic.php?f=14&t=935
Board removed
Board removed


Turn the board over and locate the solder points. Note my board is slightly different then the board in the aforementioned website.
Back of board with labels
Back of board with labels


I routed the cord through the cover near one of the screw holes before soldering. I taped the cord to the edge of the board to help hold it in place during the soldering process.
Back of board after
Back of board after


Re-install the board, route the cord to the exit point and zip tie it for strain relief. Re-assemble the radio and re-install it on the bike.
Board reinstalled
Board reinstalled


Route the Aux Input cable to the location of the device you want to plug in. I will be plugging in my Droid X cell phone. The phone has an mp3 player, Pandora internet music, GPS navigation, Google maps, and even a cell phone.
Droid X
Droid X


You will need a cassette tape in the cassette player for the Aux Input to work. A functioning tape will work, but I made a dummy tape by removing the inside parts of an old cassette.
Cassette apart
Cassette apart


Reassemble the tape housing leaving out all the internal parts.
Cassette back together
Cassette back together


This is a demo of how it works.




Created 3/11/2011 Email: nperry@mailcan.com



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WingAdmin
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Re: Adding and Aux input to the GL1500 radio

Postby WingAdmin » Sat Mar 12, 2011 8:50 pm

I used the exact same method injecting audio from my satellite radio into my GL1100 radio:



In my case I did not use a relay inside the radio to switch, I used an external DPDT switch - I cut the signal from the radio, fed it to one side of the DPDT switch, fed the satellite audio into the other side of the switch, then fed the center of the switch back into the radio and from there into the component terminal/amplifer. I've had it on my bike for years now, and it still works great.

nperry
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Re: Adding and Aux input to the GL1500 radio

Postby nperry » Sat Mar 12, 2011 11:35 pm

Sounds like a good solution. Glad to hear it is still working. I do enjoy my tunes while riding.

EyeMTweek
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Re: Adding an Aux input to the GL1500 radio

Postby EyeMTweek » Sun May 22, 2011 4:29 pm

Do you have helmet speakers and mike, and if you do, can you talk on your phone while riding? I used a Monster Cassette, but got too much interferance for my party to understand what I was saying when at speeds above 30 mph.

nperry
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Re: Adding an Aux input to the GL1500 radio

Postby nperry » Mon May 23, 2011 6:43 pm

Do you have helmet speakers and mike, and if you do, can you talk on your phone while riding? I used a Monster Cassette, but got too much interferance for my party to understand what I was saying when at speeds above 30 mph.


Yes, I have a helmet with speakers and mic. However the mic is not connected to the phone. If I need to talk on the phone I stop. I then have sound in the helmet and use the mic on the phone. I haven't tried it while traveling, but I doubt it would work any better than you describe. It would be nice to have the mic in the helmet connected, but I haven't figured out how to do that.

If you are willing to pay, I would suggest the following:

http://www.cellset.com/Motorcycleitems.html
or
http://www.sierra-mc.com/default.asp

Hope that helps.

feety
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Re: Adding an Aux input to the GL1500 radio

Postby feety » Sat May 28, 2011 4:31 am

brilliant stuff going to try it is there any chance u could show me the way u attached the plastic suction for ur gps onto ur wing cheers stuart

nperry
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Re: Adding an Aux input to the GL1500 radio

Postby nperry » Sat May 28, 2011 9:42 am

feety wrote:brilliant stuff going to try it is there any chance u could show me the way u attached the plastic suction for ur gps onto ur wing cheers stuart




Hello Stuart,

The disc that I use to stick the suction cup on is made of 1/4" plexiglass. I made the disc round by cutting it with a hole saw with the center guide drill bit removed. I then polished the edges with fine grain sand paper. The scrape of plexiglass was quite old and I had a heck of a time getting the protective cover off the glass. That is how the glass got scratched.

I removed the mounting screws from the anniversary emblem and then positioned the plexiglass over the emblem and carefully marked where the screw holes would go. I then drilled holes at the marks all the way through the plexglass. I then counter sunk those holes deep enough so that my mounting screw heads were below the top surface of the plexiglass.

Using screws 1/4" longer than the originals, I attached the plexiglass to the bike.

Good luck,

Nolan

feety
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Re: Adding an Aux input to the GL1500 radio

Postby feety » Sat May 28, 2011 11:19 am

cheers am learning a lot today. ps i ment to ask what is the switch type thing i can see to the right ov ur pexiglass. stuart

nperry
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Re: Adding an Aux input to the GL1500 radio

Postby nperry » Sat May 28, 2011 9:29 pm

feety wrote:cheers am learning a lot today. ps i ment to ask what is the switch type thing i can see to the right ov ur pexiglass. stuart


Ah hah. That is just a fader knob for the stereo.

Blakenstein
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Re: Adding an Aux input to the GL1500 radio

Postby Blakenstein » Thu Jul 07, 2011 11:48 am

I have a 1500 Interstate with the Aux input already integrated into the stereo - connector under the left fairing pocket but it doesn't seem to working. So far all I've tried it plugging my iTouch 1/8" plug out to the Aux input (RCA), turning the selection switch over to Aux and no sound. Are there other ways I can troubleshoot this?

Thank you!

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MikeB
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Re: Adding an Aux input to the GL1500 radio

Postby MikeB » Thu Jul 07, 2011 6:19 pm

Here is some information out of the Service manual that might be of some help.


MikeB
Tacoma, WA, USA

mshawnm109r
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Re: Adding an Aux input to the GL1500 radio

Postby mshawnm109r » Sat Jul 09, 2011 11:04 pm

man this is so cool hey thanks for the input on this i will d this when i get her up and going!!!!
mshawnm109r

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Kiwi2
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Re: Adding an Aux input to the GL1500 radio

Postby Kiwi2 » Sun May 13, 2012 9:31 pm

I assume that this would also work using the earphone plug that you have used etc. by using the bayonet end to plug into an ipod thus giving you music, or do you have to make a blank tape, or am I barking up the wrong tree.

I have a 1500/6. I know the later model Wings do have an aux jack fitted.

The Grand Pooh-Bah
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Re: Adding an Aux input to the GL1500 radio

Postby The Grand Pooh-Bah » Thu May 31, 2012 1:03 am

Very sweet setup. This has been added to my "To Do List" What brand and model is the cell phone mounting system used in your video?

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djlundwall
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Re: Adding an Aux input to the GL1500 radio

Postby djlundwall » Sun Oct 07, 2012 10:42 am

I really enjoyed the detailed instructions! One question... I own a 98 GL1500A. Will the mod work for this year of bike?

Many thanks!

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djlundwall
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Re: Adding an Aux input to the GL1500 radio

Postby djlundwall » Tue Oct 09, 2012 9:44 am

djlundwall wrote:I really enjoyed the detailed instructions! One question... I own a 98 GL1500A. Will the mod work for this year of bike?

Many thanks!

I can answer my own question because I went ahead and took a chance! Although the pictures of the back side of the board (where the tracings are) were different from my 98 Aspencade, the capacitors (c139 and c140) were placed in the same position, and I just soldered my leads to the same leg on each capacitor. The place where the picture identified the ground connection was completely different from the back of my audio board, so I simply soldered the ground lead to a trace that ultimately went to one of the main ground points on the board.

Let me tell you... I was a bit nervous when I put everything back together (oh... not before replacing the lights with leds!). This morning I plugged in my mp3 player and inserted an empty cassette into the player, and wha-la!!! I have beautiful music!!

shade tree
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n Re: Adding an Aux input to the GL1500 radio

Postby shade tree » Wed Jan 30, 2013 10:29 pm

nperry I am about to add the aux. input to my 1996 1500. I have found the c139c140, my question dose it make a differance which side of the small black barrel ( don't know if it is a resister or transorator ) I add the wire to? In the picture it shows to the top of each. I want to make sure don't want to make a mistake. Thank You very much.JIM

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Re: Adding an Aux input to the GL1500 radio

Postby shade tree » Mon Feb 18, 2013 7:44 pm

I just finished this upgrade to my 1996 aspen. It was easier then I thought, all you have to do is follow the direction and it will work. I was worried I would get the wrong solder point, But when I had the board out of the radio with a light behind it you can see through it. Just place a pencil point on the board and move it to the right solder point. Thanks again Perry JIM

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liquineer
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Re: Adding an Aux input to the GL1500 radio

Postby liquineer » Sat Feb 23, 2013 2:53 pm

Went to do this today after changing my radio lights to LED's (which look great) and I used an old cord off a set of headphones that I found was two uncomfortable to wear for any length of time, so been lying around. However, after cutting the wire through, I could not seem to get solder to stick to any of the three strands coming out, (which were really thin) so rather than overheat the board and components, I abandoned it for now, and will see if I can find another plug with cable that has a slightly thicker set of wires to work with.
Are we having fun yet?

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MikeB
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Re: Adding an Aux input to the GL1500 radio

Postby MikeB » Sat Feb 23, 2013 4:01 pm

Unfortunately a lot of those headphone wires are not real wire and they cannot be soldered. You will need to find a cord that is actually made of wire instead of a metal impregnated fiber.
MikeB
Tacoma, WA, USA

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liquineer
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Re: Adding an Aux input to the GL1500 radio

Postby liquineer » Sat Feb 23, 2013 6:09 pm

Thanks Mike- that's what I figured- it looks like fine strands of metallic thread, twisted together. I will see if I can get another cord that might have proper wire in it.
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WingAdmin
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Re: Adding an Aux input to the GL1500 radio

Postby WingAdmin » Sat Feb 23, 2013 11:23 pm

The other problem with those super thin wires is that they break reasonably easily. You want a fairly decent, strong wire in there that is not going to break if it is bent a few times.

Those super thin wires are in fact copper, but they're coated with resin or shellac to insulate and strengthen them. That coating prevents solder from flowing onto them.

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liquineer
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Re: Adding an Aux input to the GL1500 radio

Postby liquineer » Sun Feb 24, 2013 6:00 pm

Thanks WingAdmin- I thought I was going a bit crazy when I first tried- I could pull the wires back out of the joint, which confused me. Now that I know they are coated, it makes sense. The problem is now without cutting an awful lot of headphone wires apart, it may be difficult to find something- anyone ideas about what could be substituted- would a standard three wire cable be suitable if paired with the correct plug? Or does it need to be shielded cable of some sort. I'm a bit rusty on my electronics now, the last thing I constructed from parts was a music synthesiser for a computer back in the late 70's/early 80's. Since then I have bought things ready made. Still have the soldering iron from those days though!
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WingAdmin
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Re: Adding an Aux input to the GL1500 radio

Postby WingAdmin » Sun Feb 24, 2013 11:20 pm

liquineer wrote:Thanks WingAdmin- I thought I was going a bit crazy when I first tried- I could pull the wires back out of the joint, which confused me. Now that I know they are coated, it makes sense. The problem is now without cutting an awful lot of headphone wires apart, it may be difficult to find something- anyone ideas about what could be substituted- would a standard three wire cable be suitable if paired with the correct plug? Or does it need to be shielded cable of some sort. I'm a bit rusty on my electronics now, the last thing I constructed from parts was a music synthesiser for a computer back in the late 70's/early 80's. Since then I have bought things ready made. Still have the soldering iron from those days though!


There is an awful lot of EMI noise in a motorcycle - both from the alternator, and especially from the coils. For that reason I would highly suggest you use shielded wire.

Go to an electronics store and buy a decent quality 1/8" to 1/8" wire, that has a good thick cable on it, and cut one of the ends off of it.

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liquineer
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Re: Adding an Aux input to the GL1500 radio

Postby liquineer » Mon Feb 25, 2013 10:05 am

That's what I will do- hopefully it will be good wire inside.

cheers

Martin


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