Installing a new radio in a 75 Monza, which wires are which?

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Installing a new radio in a 75 Monza, which wires are which?

Postby V8Chick » Sat Oct 08, 2011 8:23 am

I looked at the wiring diagrams, and I don't see any reference to the radio except Radio Lights (key on power I assume?)

Can anyone tell me which wires go where, the plug was cut out of my harness.

Thanks!!
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Re: Installing a new radio in a 75 Monza, which wires are which?

Postby my79monza » Sat Oct 08, 2011 10:56 am

Here is a start.
Yellow--to fuse block 12v power from fuse
Black----to ground
Grey-----face light, tied to dash light circut

plugs on back of radio
Top = Black, yellow, Gray
Center= Green, Black to front speaker
Bottom = Blue, blue w/tracer to rear speaker

This is from my 79 Monza, may be the same as a 75 but not positive

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Re: Installing a new radio in a 75 Monza, which wires are which?

Postby V8Chick » Sat Oct 08, 2011 3:51 pm

Excellent. I assume that the other two wires are +/- for the speaker, which I need to replace anyway... (I have 5 cut wires dangling under the dash).

Thanks for the help! :)
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Re: Installing a new radio in a 75 Monza, which wires are which?

Postby hoan » Sun Oct 09, 2011 5:09 pm

thinking of you cutting the dash for a radio makes me wanna cry
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Re: Installing a new radio in a 75 Monza, which wires are which?

Postby V8Chick » Mon Oct 10, 2011 9:46 am

I didn't cut it, it was cut when I bought it....I'm just trying to fill the hole with something. (and don't worry, they did a hack job when they cut it.... I'll be doing a lot of 'fixing' with a dremel tool)
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