After my recent DNX7100 install, I have a couple of items leftover. One of those items is the Peripheral GMAH24B interface. I purchased this, then purchased the 24 and used that. It was a bit confusing to me which one to use. In the end, for my purposes, either would have worked just as well...
This module's original purpose is to allow you to replace your factory head unit with an aftermarket head unit while retaining the use of your Bose Amp and speakers as well as the OnStar interface. You can, from my reading here, also use this interface if you want to remove the Bose amp, as then it pretty much just keeps the car's computer happy and supplies power to the head unit. It also allows you to connect in a separate GMAHCM chime module to keep your chime functionality.
I purchased this new, but I didn't end up using it. I removed it from the box, but haven't touched a wire or connector. So it's effectively still brand new.
These run about $115 or more new online.
I'd like $50 shipped to you by USPS priority mail.
Cleaning out the office today I realized that I haven't sold this yet. So, here's a TTT, and a little price drop. I'll let this go for $50 shipped. Anyone get a new HU for Christmas that they need to install???
Corvette Store
FS: Peripheral GMAH24B interface
It also allows you to connect in a separate GMAHCM chime module to keep your chime functionality.
