Audio signal output of f37f-19b165-ad premium head unit?

[rupert1997]

Does anyone happen to know what the expected signal voltage is of the audio outputs of the old f37f-19b165-ad premium sound head unit? I have a never used one that I'm thinking of putting in my Bronco and I need to build an interface to the amp. I know it's 4 channels balanced and I can handle that, but I expected it to be a bigger signal than I'm seeing.

 

[DjDom]

Is this the old single din tape deck with the external amp?
If so, expect a very low signal voltage, we're talking under 1V probably.

 

[rupert1997]

O.K. thanks, that's the one. Interesting...