How To: Build and Hardwire an Auxillary Input to OEM Stereo
10-22-09 | 11:52 PM
#470
Driver School Candidate
Joined: Oct 2009
Posts: 34
Likes: 0
From: CA
I think its still too big
We made this and the day we finished it a smaller relay appeared ,so this is now MK 1 once the smaller dongle is finished I would like to install it.
Maybe using the the passenger heated switch to trigger the device I could avoid making any holes for switch ?
?
I have a 99 with the nak I have looked but before I go chopping wires could someone confirm the pin outs for me?
Maybe using the the passenger heated switch to trigger the device I could avoid making any holes for switch ?
?
I have a 99 with the nak I have looked but before I go chopping wires could someone confirm the pin outs for me?
Last edited by Oliverted; 10-23-09 at 12:00 AM.
10-25-09 | 11:15 AM
#472
Concept:
How this works is that 4 SPDT (single pole double throw) 12v Relays are used to switch between the factory CD changer signal and external source (must be preamp) before the sound goes into the OEM amplifier.
because of this, you MUST have a somewhat working CD changer, as long as it turns on you're fine.
This SHOULD work on any lexus model that uses a CD changer that gives out a preamp. output (pretty much all iirc).
Confirmed Applications:
LS400 (all years incl. NAK** and Navi cars)
GS300/400 (98-02 incl. Nak**, ML, and Navi)
GS300 (1st gen https://www.clublexus.com/forums/sho...6&postcount=16)
SC300/400 (all years)**
**=will intercept signal between CD Changer and Headunit, not amp, needs to be done on SC300/400 (all), 98-00 GS3/4 with NAK, and 98-00 LS400 with NAK (NOT needed on non-nak 98-00 LS/GS)
Should work on:
IS300 (all years)
LX450/470 (pre 02)
SC430 (all years)
if i missed any its not because they wont work, its because i havent checked
Here is a basic overview of how the whole thing will look like, including specific instructions on wiring the trigger switch
Materials:
Tools:
Props:
Salimshah for telling me to go check my wiring again
Horta for moral support
ADDENDUM:
^flashy layouts courtesy of member rgarjr
also, let me make it clear. I AM NOT SELLING THIS.
i have materials enough for 1-2 more ppl and they have contacted me during the development phase of my little project.
If, however, there is enough demand AND the CL Admin/Moderators don't mind there is possibility to change that.
Donations are accepted to help cover the cost of development
pm me for paypal
How this works is that 4 SPDT (single pole double throw) 12v Relays are used to switch between the factory CD changer signal and external source (must be preamp) before the sound goes into the OEM amplifier.
because of this, you MUST have a somewhat working CD changer, as long as it turns on you're fine.
This SHOULD work on any lexus model that uses a CD changer that gives out a preamp. output (pretty much all iirc).
Confirmed Applications:
LS400 (all years incl. NAK** and Navi cars)
GS300/400 (98-02 incl. Nak**, ML, and Navi)
GS300 (1st gen https://www.clublexus.com/forums/sho...6&postcount=16)
SC300/400 (all years)**
**=will intercept signal between CD Changer and Headunit, not amp, needs to be done on SC300/400 (all), 98-00 GS3/4 with NAK, and 98-00 LS400 with NAK (NOT needed on non-nak 98-00 LS/GS)
Should work on:
IS300 (all years)
LX450/470 (pre 02)
SC430 (all years)
if i missed any its not because they wont work, its because i havent checked
Here is a basic overview of how the whole thing will look like, including specific instructions on wiring the trigger switch
Materials:
- 4x SPDT Relays @ $1.50/each = $6 (bulk)
- 14x crimp on (female) spade connectors @ $3.25
- 14x crimp on butt connectors @ $3.25
- 4-5ft 18awg or better Speaker wire @ $.75/ft
- 14-16awg wire for 12v power
- spst switch (i used radio shack Model: 275-634)
- 2x solder type Phono plugs @ $1.50/pair (4.99/4 radioshack Model: 274-319)
- 2x RCA female coupler @$4/pair (radioshack Model: 274-874)
- superglue-$1.50 (useful tip: avoid gel)
- 2sq. in. 2sided padded tape @ $2 (optional)
- Ipod dock to RCA output cable (for ipod specific install, use this because u get line-lvl (preamp) outputs
)
Tools:
- Soldering Iron
- Flux
- Solder
- Wire Crimper
- Wire Cutters
- Wire Strippers
- Needlenose Pliers
- small knife/exacto knife
- bravery
- socket set (optional for install)
- medium size screwdrivers (philips+flathead)
Props:
Salimshah for telling me to go check my wiring again
Horta for moral support
ADDENDUM:
^flashy layouts courtesy of member rgarjr
also, let me make it clear. I AM NOT SELLING THIS.
i have materials enough for 1-2 more ppl and they have contacted me during the development phase of my little project.
If, however, there is enough demand AND the CL Admin/Moderators don't mind there is possibility to change that.
Donations are accepted to help cover the cost of development
pm me for paypal
11-05-09 | 10:50 PM
#474
11-09-09 | 01:18 AM
#477
12-09-09 | 05:31 AM
#478
sorry guys, i can't give every person who asks a wiring diagram. resources are available on both this site and the rest of the internet to get your pinouts. sorry but i am a full time student and can't really keep up with all those requests.
12-13-09 | 05:39 PM
#479
Rookie
Joined: Aug 2007
Posts: 84
Likes: 1
From: Kansas
12-13-09 | 07:54 PM
#480
Rookie
Joined: Dec 2009
Posts: 45
Likes: 2
From: Planet Earth
Anyone else tried this on a 2002 ES300? I see there's 4 screws inside the multi-CD changer box. I'm guessing (rather hoping) if I take them off I'll have access to the audio connector.
EDIT: I got to the connector, now checking out pinout stuff. Checking out Vaistech too.
EDIT: I got to the connector, now checking out pinout stuff. Checking out Vaistech too.
Last edited by alan311; 12-24-09 at 09:59 PM.