Where goes each wire color, cb radio ltd29 bt microphone

This is the only resources out there that is remotely close.

https://www.wearecb.com/cb-microphone-wiring-page-2.html?selected_section=discussion

https://www.scribd.com/document/186885200/Mic-Wiring-Diagrams

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Hi Paul.
see if this link helps you out.
cb microphone wiring diagram Google Search
or this one.
cb microphone wiring diagram Google Search

look up microphone wiring diagram for your cb and mic. more than one way to wire, depending on mic and cb having 4 or 5 on plug end. write down mic numbers and cb plug numbers. if audio on mic is 3 and cb is 4 put 3 on 4 pin check each wire. using power mic make sure red and black wire are on the right pin, can damage radio or mic or both.

ALTAI PWR MIC - black/braid= earth, red=RX, white=TX, Yellow=MODASTATIC - blue/braid=earth, black=RX, red=TX, white=MOD, Yellow=Spare
SIRTEL ECHO MIC CBE 2002 - black/braid=earth, blue=TX, white=RX, red=MOD007 POWER MIC - brown/braid=earth, green=RX, white=TX, blue=MODSADELTA EC 980 - braid=earth, green=RX, brn=TX, white=MOD
or braid=earth, black=RX, blue=TX, white=MOD

trial and error

should be the same as the lxle

Find your radio on this page and then look at the wiring diagrams

if you have another cobra mic that was previously used on a 29 it should fit . just about all 4 pin cobra mics are alike .You can even use them on Galaxy radios and others.

Use trial and error systemathically. If still refuses to work, mike and radio aren't compatibles.

Here is the wire diagram for the Galaxy:

1-SHIELD
2-MOD
3-TX
4-RX

I hope this helps you!