Go Back   Club Lexus Forums > Lexus Special Interest Forums > Lexus Audio, Video, Security & Electronics
Sign in using an external account
Register Forgot Password?

How To: Build and Hardwire an Auxillary Input to OEM Stereo

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 07-22-14, 11:40 AM   #736
Shmee
Lexus Test Driver
Trader Score: (2)
 
Shmee's Avatar
 
Join Date: Dec 2007
Location: Victoria, BC. Canada
Posts: 1,295
Conglomeratemotorworks
Default

The 12V signal can come from any fused and switched 12V ignition source. The power for the amp or CD player for instance. its's purpose is to power the replay in order to allow it to switch from one pole to another.


Click the image to open in full size.

think of it this way....
once everything is hooked up as per the photo above and the instruction in the first post, the source connected to the normally closed pole on the relays will always be on, with or without the 12v source connected.

in order to switch the other source, you need to excite the relay with a closed circuit from the 12v and the ground. so by applying the 12V and ground it will switch to the other source.

the toggle switch allows you to manually select which source you want by either completing the 12V circuit and switching to the alternate source or by breaking that circuit and reverting back to the default source.

I have my AUX set as the default source and the CD player and the switched source, mainly because i never listen to CD's and i didn't see the point to having an energized relay going 24/7 while i'm in the car.


hope that helps
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
__________________
Bags are for groceries!

My LS400 Build Threadl
Follow me on Instagram: @Conglomeratemotorworks
Shmee is offline   Reply With Quote
Old 08-24-14, 08:35 AM   #737
nightrave
Driver School Candidate
Trader Score: (0)
 
Join Date: Dec 2013
Location: Dublin
Posts: 4
Default

Quote:
Originally Posted by Shmee View Post
The 12V signal can come from any fused and switched 12V ignition source. The power for the amp or CD player for instance. its's purpose is to power the replay in order to allow it to switch from one pole to another.
sorry, was on a long vacation! Thank you for the explanation, but where is the 12v source on the CD player/Amp? Which wire is it? I have searched through the web and am still clueless. I guess this is something very obvious, but I still can't get it The only picture I've found shows only the ACC, but AFAIK this means I can only use the circuit when the engine is on. Cannot find the BAT/B+ anywhere

Click the image to open in full size.

Last edited by nightrave; 08-24-14 at 09:09 AM..
nightrave is offline   Reply With Quote
Old 08-31-14, 06:10 PM   #738
msweber97
Driver School Candidate
Trader Score: (0)
 
msweber97's Avatar
 
Join Date: Oct 2013
Location: indiana
Posts: 31
Default

shajbot, thanks for the diagram and specs for the 93 ls400 tapped into the wires and works perfect!!
msweber97 is offline   Reply With Quote
Old 10-09-14, 06:02 PM   #739
jabbajt
Driver School Candidate
Trader Score: (0)
 
Join Date: Oct 2014
Location: LA
Posts: 1
Default

Amazon.com: Velleman K2572 Universal Stereo Pre-Amplifier: Industrial & Scientific Amazon.com: Velleman K2572 Universal Stereo Pre-Amplifier: Industrial & Scientific
jabbajt is offline   Reply With Quote
Old 10-13-14, 10:40 PM   #740
Alexbenz
Lead Lap
Trader Score: (0)
 
Join Date: Sep 2005
Location: ca
Posts: 465
Default

what's this good for?
__________________
Widebody-----W210-----Sold
Current line up........e30=sold, bmw e39=sold, lexus es300, 2010 Acura Tsx
Alexbenz is offline   Reply With Quote
Old 10-15-14, 09:54 AM   #741
UniqueCopy
Driver School Candidate
Trader Score: (0)
 
Join Date: Aug 2014
Location: CO
Posts: 9
Default

Quote:
Originally Posted by phantom007 View Post
hi, I found a way of adding the auxiliary cable to the system without any modifications or wire cutting.

at the back of the cd player is a plug, the four wires on the back on one end, red (right+), black(left+), and two other colours white and (I cant remember, but they are both ground). These four wires are shielded in the loom

I got an aux cable with the male stereo connection on both ends, (very common), and cut one end off, there are three wires, (two wires and the shielding) I bought a packet of mini spade connectors, which slip snugly into the back of the cd plug where the wires go in.

I crimped the red, white wires with the mini spade connection, and divided the shielding into two wires and crimp a mini spade onto each.

then unplugged from back of cd player, inserted the red wire to the red wire input, the white wire to the black wire input, then the other two below them, then plugged it back in.

I then burnt a silent audio cd,(google it), when playing that cd I plug in my smart phone and use it as my music player. sounds as good as the cd if not better.

1998 ls400 pioneer stereo
This seems like a much easier option. I did this to my girlfriend's 2005 Yukon, running it in-line with the XM radio, and using the blank station 0 for device playback.

Am I missing something here?
UniqueCopy is offline   Reply With Quote
Old 10-15-14, 10:10 AM   #742
Blanco
Lexus Test Driver
Trader Score: (8)
 
Blanco's Avatar
 
Join Date: Feb 2002
Location: Texas
Posts: 855
Default

Well actually it's easier than that. You don't need to burn a silent cd. I run my aux input without any disc in the changer. I have nav in a 98 GS. It tells me no disc for a few seconds then goes away if I have the screen set to anything other than audio. If I leave the audio screen up the message never goes away, but the audio still plays from the aux input anyway.
Blanco is offline   Reply With Quote
Old 10-16-14, 09:12 AM   #743
dvdchance
Rookie
Trader Score: (0)
 
dvdchance's Avatar
 
Join Date: Jan 2014
Location: nj
Posts: 55
Default

Quote:
Originally Posted by Blanco View Post
Well actually it's easier than that. You don't need to burn a silent cd. I run my aux input without any disc in the changer. I have nav in a 98 GS. It tells me no disc for a few seconds then goes away if I have the screen set to anything other than audio. If I leave the audio screen up the message never goes away, but the audio still plays from the aux input anyway.
Will this also work in an older 95 LS regular not Nak?

I've been debating for awhile doing this mod but I'm more motivated now. For whatever reason my new iPhone 6 gives an annoying buzz using the cassette adapter that I have been using perfectly with my older phone without issue. Go figure.
dvdchance is offline   Reply With Quote
Old 10-16-14, 09:12 AM
 
 
 
 
Reply

Tags
2004, 325i, 86120, add, auxillary, bmw, cable, hack, input, instructions, ipod, ls400, oem, radio, toyota, universal

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
AUX input for under $5.00*** You guys wont be disappointed Pic intensive Sheehan1p GS - Second Generation 172 Yesterday 02:10 PM
DIY Hardwire Auxiliary Input to Stock 3ES Radio es30000000 ES300 and ES330 26 12-03-13 06:38 AM
1998 ES300 head unit replacement help! Michael86 Lexus Audio, Video, Security & Electronics 0 09-20-12 07:40 PM
Fan on ac condensor bryan767 Performance & Maintenance 19 07-03-12 10:52 AM
SPDT 5 pin Relay Navigation Hack istundra IS - Second Generation 5 04-22-08 08:59 PM

All times are GMT -7. The time now is 10:09 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info