Recent content by Triplel40

  1. Triplel40

    Adding AUX to 88-94 Stock Stereo

    I think the diagram is mislabeled because your wires look like the ones I used in the first post. Also, the diagram is upside down compared to your picture. (Tan on top vs tan on bottom.) The Tan, Blue w/ black stripe, skinny black, and grey wires can be removed then you’ll have the wires you...
  2. Triplel40

    Steering wheel with buttons in old interior?

    Gotcha, sorry didn’t mean to offend, just misunderstood which 6-pin segment you were referring to. Sent from my iPhone using Tapatalk
  3. Triplel40

    Steering wheel with buttons in old interior?

    The 9-pin segment is an aux circuit that the factory cassette player ran off of. The pinout for it is included in the first post on my Adding AUX to 88-94 stereos thread. Adding AUX to 88-94 Stock Stereo...
  4. Triplel40

    Hidden functions 88 OEM stereo

    CrO2 (chromium oxide) changes the bias in the tape deck for Type II cassette tapes, which used more expensive chrome based tape vs the cheaper cassettes with iron based tape. Seems weird to me that it would work as a noise reduction because CrO2 tapes usually had better sound to noise ratios...
  5. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Looking online I’m running into the same roadblocks. You need a 3.5mm jack with an isolated N/O switch. Haven’t found any for sale outright, only a couple available from manufacturers in China but they required purchasing them in quantities of 1000 switches haha. I’ve ran across a lot of...
  6. Triplel40

    Hidden functions 88 OEM stereo

    Works in my ‘88 even in the aux/tape mode. Also here’s a post about the Dynamic Noise Reduction. https://audiokarma.org/forums/index.php?threads/dynamic-noise-reduction-information-and-thoughts-wanted.385533/ On a separate note, I recall once seeing one of these radios posted that was...
  7. Triplel40

    Adding AUX to 88-94 Stock Stereo

    I just finished installing the JL Bluetooth module in my ‘88. One thing I found is the orange wire that sends power to the switch is actually full time power, so anytime the key is off but your aux switch is on, it sends power back to the radio. No big deal since it’s just a reference for the...
  8. Triplel40

    Adding AUX to 88-94 Stock Stereo

    I do believe that should work. I’d check for ground with it plugged in just to make sure. Glad this thread is still helping people! I have a JL Audio MBT-RX Bluetooth adapter sitting in my garage that I’m planning to wire up in my ‘88 that way too. Sent from my iPhone using Tapatalk
  9. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Looks good! That switch and jack location looks like it works great! Kind of wish mine was down there haha. Glad to see this thread is still helping people.
  10. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Pretty much the same as the original post without installing the switch. You would just permanently wire pins #11 and #12 (orange and dark blue wires) together instead of using the switch to turn them on. If you don’t care about it you can just cut the original harness going to the tape deck and...
  11. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Sorry about the delay, here’s what mine looks like.
  12. Triplel40

    Adding AUX to 88-94 Stock Stereo

    I’ll post a picture of my antenna plug when I get home from work this afternoon. Sent from my iPhone using Tapatalk
  13. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Hey sorry I haven’t been on here in a while, life has been busy. Glad to see you got the install done. I’m not sure about the alternator noise. I’ve never had any issues with it in my ‘88, but my uncles old 89 has it with the original untouched radio. I would suspect an issue in the stock radio...
  14. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Sounds good. I don’t know about components in the stock radios. I’ve heard the same about them having problems but mine is the original and still working. (Knock on wood). Sent from my iPhone using Tapatalk
  15. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Wow, really weird timing on your post seeing that I just started researching how to do this myself last night. Guess great minds think alike haha. In my brief research I found a few pin-outs for the 30-pin/lightning end of the connectors, but nothing so far that shows it at the USB end. I’m sure...
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