splinter34
Member
DELETE.......
Run it into you AUX jack on in your vehicle with a TRS plug. Works pretty decentI do want to experiment with a different speaker choice for the radio. I can't help but thinking that a higher fidelity speaker
will slightly improve intelligibility than the stock 4" speaker in the housing. And if not, it was a cheap experiment.
TRS plug? No idea which one that is and didn't see it in the install manual. Please clarify in case I've misread something.Run it into you AUX jack on in your vehicle with a TRS plug. Works pretty decent
If you are referring to the DB 44 on the radio that’s okay if the speaker is nearby and I did build an adapter for testingYou can pull audio from the DB connector too.

I shouldn't read manuals when I am tired but I wanted to keep digging and saw I looked at the diagram pins on the right but the 25 pin on the left (P1) is the one that plugs into the radio and that shows that you are correct!Pin 18 and 19 are the speaker out puts from the DB25 on the back of the CH721.

Check your PM.If anybody needs the factory speaker pigtail (round pin to 2 prong) just send me a PM. I have a few I can spare. 10 bucks each plus priority mail shipping.
Or you could use a cheap DB25 male connector as Splinter pointed out to meCheck your PM.
This all depends on if your a Harris purist or a hack. A DB25 is easy and available everywhere. The purist seeks out the most complex and expensive option.Or you could use a cheap DB25 male connector as Splinter pointed out to me![]()
I revel in the title of "Hacker", a crown I willingly wear and by the way, it's festooned with CANBUS 120 ohm terminators.This all depends on if your a Harris purist or a hack. A DB25 is easy and available everywhere. The purist seeks out the most complex and expensive option.
I'd like to have you start your own thread on programming and please get the exact code. Then let me know when you have the thread going.I recently picked up an XG-100M with CH-721 and it won't program. Everytime I program it, even with a blank and default system it gives me an 0500T error (or something like that).
Does anyone know how to fix it? Or how to fix it?
Thanks!
I need to block this thread or its going to have me maxing my credit card. Question. If the lowband VHF exciter an option or is it standard in the radio?Join our cult 😇