Alpine M-Bus Input Mod?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=39027
Printed Date: May 28, 2024 at 6:08 PM

Topic: Alpine M-Bus Input Mod?

Posted By: 12-volt_guy
Subject: Alpine M-Bus Input Mod?
Date Posted: September 12, 2004 at 2:49 PM

Anyone know if there is a way to modify an M-Bus cable for older (non-Versatile Link) Alpine decks to trick the unit into thinking a changer is connected so you could access the input?

Replies:

Posted By: Alpine Guy
Date Posted: September 12, 2004 at 4:26 PM

What are you planning on hooking up to it??

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Posted By: hotshoe50
Date Posted: September 13, 2004 at 12:05 AM

The original author wrote the question on my behalf. I have a CDM-7854 and would like to hook up XM-radio (or MP3, ect.) to the deck without using an FM modulator. It's an Mbus deck, but non-Versatile Link from what I can tell. It does not have an AUX input, but does have changer controls. My hope was that I could fool the deck to think there was a CD changer present so I could use the m-bus to run in the XM radio. Any thoughts? Thanks!

Posted By: Alpine Guy
Date Posted: September 13, 2004 at 2:27 PM

There is an rca input adaptor for that deck. You can search for the m-bus to rca adaptor, , , or the m-bus to ai-net, then ai-net to rca adaptors. I don't have access to the part numbers to help you right now, , were moveing so i can't find any price sheets just yet. But expect to pay $10-$20.

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Posted By: hotshoe50
Date Posted: September 13, 2004 at 3:21 PM

Thanks for the info,

I did find a few part numbers. the KCM-123b (RCA) and KCM-122b (mini) that are for this purpose. I did find a few notes that said the adapter may not work in some of the "older" M-BUS decks, and that was my concern. No more detail was given than that, but I presumed they were talking about decks which did not advertise "Versatile Link", which the 7854 did not. Well, it's only $15 to give it a try.

Alpine_Guy, so you believe one of the above adapters should allow me to connect XM (or any other low-level source) to the CDM-7854?

12_volt_guy, do you have one these in stock?

Thanks guys!

-C