[HOW-TO] AUX (Line-in) on CTS without sat radio - Page 2
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, [HOW-TO] AUX (Line-in) on CTS without sat radio in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Great write up, well done! I have the non xm radio and desperately want a AUX port because I usually ...
  1. #16
    Firewalker is offline Cadillac Owners Fanatic
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Great write up, well done! I have the non xm radio and desperately want a AUX port because I usually listen to Pandora thru my phone. Currently, I am using a FM modulator, the sound isn't horrible but certainly not as good as what you have done here. Since the write up was so well done, I may just tackle it myself!

    Thanks again

  2. #17
    atorres12 is offline Cadillac Owners Member
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    First off, let me just say awesome write up. It was very easy to follow. I just got done adding this set up to my 2003 non navi/ xm CTS and I must say that I'm pretty impressed with the way it came out. The only downside is that I am not getting any sound out of my sub. Any thought or ideas on what caused that and how I can fix it? Any feedback is appreciated. Thanks

  3. #18
    pyromosh is offline Cadillac Owners Member
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Just an update for folks who, like me had never attempted a project like this, and had no idea how to read a relay on a circuit diagram before this.

    I'm in the U.S. and we have Radio Shacks on practically every corner here. I did this almost with all Radio Shack parts.

    Phone Jack:
    Radio Shack part number 274-0249 (2 to a pack, I needed 2 because the pins are delicate and I broke the middle one while soldering)
    PCB:
    Radio Shack part number 276-0148 (perforated in the middle so you can use the whole thing, or just half. I only needed half for this project)
    Box:
    Radio Shack part number 270-1802 (fits the PCB above perfectly, you'll need to drill holes in the side for wires)
    Relays:
    Radio shack part number 275-0249

    I used a switch from AutoZone because I didn't like any of the ones they had at Radio Shack, though they had a bunch available. The one I have is a simple black rocker switch with a blue LED that illuminates in the "on" position.


    The pinouts on the relays I used are different from those on the relays the OP used, so I figured it would be helpful for a lot of folks who are in the U.S. where these parts are easy to find, but who don't have a deep understanding of the principal.

    Below is the wiring diagram for the parts I used. Even if you understand very little of how this works, if you can operate a solder iron, you should be able to make this work by copying this diagram using the parts above, and some wire. I hope this helps someone.

    aux_in.png
    Cadispeedster likes this.

  4. #19
    Tlorenzen is offline Cadillac Owners Connoisseur
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    atorres - My guess is you wired your amp for your subs to get its input from the cars stock subwoofer? Now, im not intirely sure, but i don't know how the left and right wires could possibly also distribute sound to the sub. If im thinking this right, your subs just arent getting any input, maybe there needs to be another wire? Im curious now as im about to do the same thing and I have subs also,, tried a different tactic today that failed , but on the bright side - I didn't cut any wires...I just want better quality than them stupid fm transmitters.

  5. #20
    CTSUK's Avatar
    CTSUK is offline Cadillac Owners Enthusiast
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    I was reading this and noticed that some people said they dont know how to turn on their RCA inputs under the center armrest if fitted, mostly to euro spec cars, there is a reason for this, I found that my CTS had the TV/VCS fuse swapped out to a spare location, I swapped it back and the TV started working, if you then press the SEL button/knob it will let you switch between TV and Aux in, my aux in works just great

    Hope this helps

    Stu

  6. #21
    CTSandSmile's Avatar
    CTSandSmile is offline Cadillac Owners Member
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    Quote Originally Posted by CTSUK
    I was reading this and noticed that some people said they dont know how to turn on their RCA inputs under the center armrest if fitted, mostly to euro spec cars, there is a reason for this, I found that my CTS had the TV/VCS fuse swapped out to a spare location, I swapped it back and the TV started working, if you then press the SEL button/knob it will let you switch between TV and Aux in, my aux in works just great

    Hope this helps

    Stu
    Hey Stu
    Just looked into the fuseboxes under the backseat. How on earth did you find out wich fuse to swap? I have the Aux under center armrest and would very much like it to work.
    /jasper

  7. #22
    CTSUK's Avatar
    CTSUK is offline Cadillac Owners Enthusiast
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Hi Jasper,
    It is in the same fuse block as the trunk diode passengers side I believe (or drivers side if it is a right hand drive car).
    It is in the same row that the fuse puller is, its label is TV/VCS, if there is no fuse in place then you will need to buy one or if there is a fuse in the spare locations of a 10A (red in colour) rating use that and place it into the TV/VCS fuse slot, from the "Joint connector" it is the first fuse hole that you come to after the "spare" relay location.

  8. #23
    CTSandSmile's Avatar
    CTSandSmile is offline Cadillac Owners Member
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    Thanks! I'll give it a try one of the next days.

  9. #24
    454Casull is offline Cadillac Owners Fanatic
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    What type of relay is needed? I'm assuming a 12VDC DPDT relay?

    http://www.parts-express.com/pe/show...number=075-134

    Like that? And if all we're doing is intercepting the output from the radio, why can't we just use a 4PDT switch?

    http://media.digikey.com/photos/E-Sw...4T1B1M1QEH.jpg
    http://www.digikey.ca/product-detail...2428-ND/378897

  10. #25
    454Casull is offline Cadillac Owners Fanatic
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    No one?

  11. #26
    agp's Avatar
    agp
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Great write up, props to you!

  12. #27
    454Casull is offline Cadillac Owners Fanatic
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Quote Originally Posted by 454Casull View Post
    No one?
    I'm going to go ahead with my 4PDT switch. Pics to come...

    Ordered 360-2094-ND, CP5-43502PM-ND, AE10361-ND, from Digikey. Need some QDs and butt splices next, and maybe some wire (depending on what size the stock wiring is).

  13. #28
    atorres12 is offline Cadillac Owners Member
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Quote Originally Posted by Tlorenzen View Post
    atorres - My guess is you wired your amp for your subs to get its input from the cars stock subwoofer? Now, im not intirely sure, but i don't know how the left and right wires could possibly also distribute sound to the sub. If im thinking this right, your subs just arent getting any input, maybe there needs to be another wire? Im curious now as im about to do the same thing and I have subs also,, tried a different tactic today that failed , but on the bright side - I didn't cut any wires...I just want better quality than them stupid fm transmitters.
    Tlorenzen, Thanks for the response and i must apologize about the lapse in time between posts. Anyway, what i found, upon further inspection, was that I was actually getting some sound from the sub but it was barely being pushed...very minimal sound coming from the sub while the mid's and high's sounded perfect. I lost interest in figuring it out so I've been using the cd player but my collection is now becoming hard to manage...anyone on here with any other thoughts on how i can get better sound from the sub? Again, I used the diagram provided by Dronix, no other modifications.

  14. #29
    JRodzik69 is offline Cadillac Owners Member
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    It sounds like it may be connected out of phase, ie positive to negative, negative to positive at some point. Most likely with the 2 light green wires....crazy they made the same color!

    When I did this mod, I cut the wires inline with the auxiliary input, soldered RCA connectors on each side, and installed a 6 volt line driver because I found the sound was much lower than the fm radio and cd sources.

  15. #30
    Tlorenzen is offline Cadillac Owners Connoisseur
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    Re: [HOW-TO] AUX (Line-in) on CTS without sat radio

    Quote Originally Posted by atorres12 View Post
    Tlorenzen, Thanks for the response and i must apologize about the lapse in time between posts. Anyway, what i found, upon further inspection, was that I was actually getting some sound from the sub but it was barely being pushed...very minimal sound coming from the sub while the mid's and high's sounded perfect. I lost interest in figuring it out so I've been using the cd player but my collection is now becoming hard to manage...anyone on here with any other thoughts on how i can get better sound from the sub? Again, I used the diagram provided by Dronix, no other modifications.
    I ended up just taking it to a shop and having them wire it up..they even messed it up the first time..but fixed for free. Wish I was more help to ya man.

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