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  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...
  16. Triplel40

    So I wanna replace my turn signal/wiper stalk, I think.

    Last time I looked for a pulse board for my 88 I couldn’t find a replacement. I ended up buying a junkyard 92 wiper motor and swapping in as the newer style pulse board is readily available everywhere I’ve looked. Sent from my iPhone using Tapatalk
  17. Triplel40

    Adding AUX to 88-94 Stock Stereo

    Thanks everyone. Just figured I'd share since it isn't too hard to do. I have a couple of spare 89+ cassette players and harnesses if anyone is interested in one I'll ship them out, keeping the 88 spares for mine though. This thread is for 95+. It was a repost of a thread from the LS1tech...
  18. Triplel40

    Adding AUX to 88-94 Stock Stereo

    My apologies if this has already been posted, but after finding multiple started threads that dead ended I decided to do a proper write-up on adding AUX to 88-94 stock stereos, both on models with and without a tape deck. For this addition you will need: ~wire (I purchased a few feet of 18ga...
  19. Triplel40

    TripleL40's '88 K1500 Build

    Small update but a big one for me. Finally replaced the poor worn out HM290 with a 94 granny low NV4500 I snagged for $200. Also swapped all of the clutch hydraulics over from the 94 because there was a crack in my clutch line that was constantly drawing air and having to be bled. For the first...
  20. Triplel40

    TripleL40's '88 K1500 Build

    Was planning on a dark metalflake maroon for the paint, and maybe from the bump-strip-down painted black. Not 100% on the black yet. Also not 100% sure about the flatbed anymore either, have some ideas floating around. Just picked up some H2's for it though so I'm stoked! Just gotta find some...
  21. Triplel40

    TripleL40's 1956 Studebaker Pickup

    She's still sitting in the barn waiting...Trying to get the original '56 body parts back from a family friend that was working on them for me, but he keeps making excuses, guessing he hasn't gotten anything done on them yet. Did get the exhaust all welded up and installed, just got an adapter to...
  22. Triplel40

    TripleL40's '80 Chevy Luv 4x4 Build

    I'm baaaaack! Well I never really left I just keep forgetting to post updates... Have made a little progress on the LUV this summer. Unfortunately ended up laid off for a quite a while and that lack of income meant I didn't get anywhere near as much done to it as I wanted to. Mock up of the...
  23. Triplel40

    TripleL40's '88 K1500 Build

    I really need to update these things more often! Now I have to pick through pictures or else I'm gonna flood you guys :anitoof: 88 has been great since the head gasket/top end refresh. No more death smoke on startup with those new valve seals. Only mechanical problem I've had was my smog pump...
  24. Triplel40

    TripleL40's '88 K1500 Build

    Just rolled over 330,000 miles and the 305 decided the right head gasket was done. Borrowed my boss' shop and tore into it. Found the right gasket was bad and the left one was seeping in a few places. Figured while I had it apart, might as well freshen the top end up a little bit. Ground the...
  25. Triplel40

    TripleL40's '80 Chevy Luv 4x4 Build

    Small update, still waiting for warmer, dryer weather, but picked up a disc brake 9.5 SF14B for the rear of the LUV. Going to start working on the rear suspension in the next week or so hopefully if the weather holds out.
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