Radio Wiring Diagram

[I_M_Legend]

Hello, can anyone tell me which colored wires from the stock radio harness corresponds to the following:

Constant Power
Switched Power
Ground
Lamp (+ to dim the unit when lights are turned on)

Thanks!

 

[Old Guy]

Pin out for head unit

 

[I_M_Legend]

Pin out for head unit

Exactly what I was looking for, thanks!

 

[MotorMouth93]

The electrical troubleshooting manual is a great tool to have if you plan on working on your car a lot and you can usually find them pretty cheap on ebay. I paid $50 for mine.

 

[SWFL_NSX]

Is the electrical troubleshooting manual NOT contained in the the 1991 service manual that is available for download here at prime?

<style type="text/css">p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'; color: #dca10d }span.s1 {text-decoration: underline}</style>http://www.nsxprime.com/FAQ/Reference/1991_svcman/1991servman.pdf

 

[MotorMouth93]

Yes it’s a separate book about 1/3 the size of the service manual.

 

[18000rpm]

Pin out for head unit

Anyone know if the passenger and driver's speaker connectors in the diagram need to be switched for RHD/JDM vehicle?

 

[Heineken]

The pin-out stickers on all radio types I handled so far (US/EU/J) showed no difference.

 

[18000rpm]

The pin-out stickers on all radio types I handled so far (US/EU/J) showed no difference.

Meaning pin A1 is the passenger speaker, regardless of whether the car is LHD or RHD?

 

[Heineken]

The stickers on the radio are different from the page in the manual. They show the right and left channels at the same pin for EUDM and JDM:





Note, the picture on the sticker is flipped

 

[18000rpm]

I think pin A1 is always front right speaker (+) pin.

The diagram that says pin A1 is "passenger's door speaker (+)" is only valid for LHD cars.