Product Description
The Custom Autosound Memory Maintenance Module (part number MEMMOD) works with the Custom Autosound NGVB-HC voltage booster and PGPI-HC power inverter. It supplies the separate, always-hot input that some radios need to keep their memory and clock settings.
What It Does
A modern radio keeps presets, clock and settings in memory using a constant power feed. When a radio is powered through the NGVB-HC (for 6-volt negative ground cars) or the PGPI-HC (for positive ground cars), the module provides that always-hot memory input so settings are not lost when the key is off.
Features
- For use with the NGVB-HC and PGPI-HC
- Provides a separate always-hot input for memory or clock functions
- Compact size: 50mm x 32mm x 28mm
- Wire and instructions included
- Universal, not vehicle specific
Who Needs It
If your classic has a 6-volt or positive ground system and you are adding a Custom Autosound radio with the NGVB-HC or PGPI-HC, check whether your radio needs a separate memory feed. If presets or the clock reset every time you turn the car off, this module is the fix.
Installation
The module is small enough to tuck behind the dash near the booster or inverter. Follow the included instructions and use a fused connection.
Universal Fit
Because it is not vehicle specific, the same module works in any car or truck using the NGVB-HC or PGPI-HC.
Pairing With Your Radio
Custom Autosound radios are built for 12-volt negative ground. The NGVB-HC and PGPI-HC let them run in older electrical systems, and this module completes the setup by keeping memory powered.
About Custom Autosound
Custom Autosound has made radios for classic cars and trucks for decades. Its voltage booster, power inverter and this memory module let its radios work in cars whose electrical systems were never designed for them.
Troubleshooting Tips
If settings still reset, check that the module's input is connected to a source that stays powered with the key off, that grounds are clean and tight, and that the fuse is good.
Battery Drain
The memory feed draws very little current, but if a car sits for months, a battery maintainer keeps the battery healthy and the radio's memory intact.
Planning the Install
Before you start, decide where the booster or inverter and the module will mount, and keep wire runs short and neat. Label wires as you go so future service is easy.
NGVB-HC or PGPI-HC?
The NGVB-HC is a voltage booster for cars with 6-volt negative ground systems. The PGPI-HC is a power inverter for cars with positive ground systems. Each lets a 12-volt negative ground radio run in the car, and this module works with either one.
Why Memory Matters
Without a constant feed, a radio forgets its presets, clock and tone settings every time the car is shut off. Keeping memory powered means the radio is ready the way you left it.
Custom Autosound Memory Maintenance Module FAQ
What does it work with?
The NGVB-HC and PGPI-HC.
Is it vehicle specific?
No, it is universal.
How big is it?
50mm x 32mm x 28mm.
Does it come with wire?
Yes, plus instructions.
Why are my presets resetting?
Your radio may need an always-hot memory input, which this module provides.
Accessory specifications
- Custom Autosound accessory: Custom AutoSound Memory Maintenance Module
- See product title and overview for the exact function and vehicle applications
- Use only as directed by the manufacturer sheet packed with the part when provided
Wiring / tech tips
Follow the instructions packed with this accessory. Disconnect the battery before any electrical work. Vintage Car Radio does not install.
Manuals
Manufacturer Warranty
Coverage for this Custom Autosound accessory follows the manufacturer’s published terms for the part. Contact Vintage Car Radio at 844-802-4499 or 574-226-6676 with your order details.
Vintage Car Radio does not offer installation.
FAQ — Accessory
Do you install?
No.
Need help?
844-802-4499 or 574-226-6676.
Specs
Wiring / Tech Tips
Manuals
Warranty
Manufacturer Warranty
Coverage for this Custom Autosound accessory follows the manufacturer’s published terms for the part. Contact Vintage Car Radio at 844-802-4499 or 574-226-6676 with your order details.
Vintage Car Radio does not offer installation.
