Vintage Audiovox Head Unit

[Blowngt95]

I am in need of some help or a definitive answer on whether or not I can wire a vintage (1982) Audiovox Head unit Model FO-DLXB to a modern amplifier. My concern is in regards to the radio not having the standard audio ground wires. There is only speaker + for audio outputs. The car does have a factory amp that the speakers ground through.
What is the solution to running this factory HU to new aftermarket amp/speakers as far as the audio ground signal is concerned?

In my time searching for answers I found an old Audiovox AXT-500 amp manual on page 8 showing a NOTE: to only use speaker + when using hi level inputs.... does such a thing still exist today?
Read online User's Manual for Audiovox Rampage AXT-550 Stereo Amplifier (manualbooms.com)

Thank you
Dillon

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[Deiimos]

That is a bit on the older side. I'll say welcome, and suggest you try asking over at diyaudio in the car audio section. That is a more technical forum.
Link:

Car Audio

www.diyaudio.com

 

[Robert1999]

Those old 81-82 radios grounded the neg terminal on the speakers to the chassis. Thats why all the 83-85 radios had a label on the that said DO NOT GROUND ANY SPEAKERS.

Hope that helps but not sure if it will work.