CAR RADIO CASSETTE

[rainydays]

Hi all, trying to connect a car radio cassette. Pioneer KE-373OB with the following coloured cables on the back of the cassette holder:

Red with a fuse on

Blue

Blacks x2

The speaker cables are seperate and obvious

Tried searching the net for a manual to no avail. Think its quite old.

I have identified the cables on my vehicle as: constant power, switched power and illumination and there is also a green and yellow which i presume is a ground/earth

Anyone any ideas. Thank`s

 

[Andy™]

the blue is most likely a output to motorised aerial

black is usually neg, and red is switched live. yellow is perm live. not sure why the radio has 2 blacks.

any pics?

 

[revjames]

As above but there is usually another live input for night illumination from the lighting circuits. Again not sure about the blacks. Put a tester across them to see if they are the same ie no resistance across them.

 

[m4tty]

Turn the lights on and see which one becomes live?

 

[rainydays]

Thank`s for the replies

Just had a bit of a tinker with it.

I connected the constant power from my vehicle to the red cable on the cassette with the fuse in and green and yellow from my vehicle to the metal casing of the cassette this enabled me to turn the cassette on and off and it also illuminated.

There was no voltage present on any of the blacks coming out of the cassette when turned on. There was however continuity between both black`s and my earth connection.

I presume then that i will not need to use my illumination and switch power cable coming from my vehicle.

Have not got correct connectors yet so have not connected it in properly for now

 

[mikep]

You will find that most radios chassis earth's are commonly connected to battery neutrals as for theothers there is sidelight feed for night time illumination of the readout, permanent battery live feed for station memory, ignition switch live, and also electric aerial output which is sometimes used for amplifier activation.

Hope this helps, if you need more info let me know and I will check if I have a manual for the Pioneer.

Regards, Mike.

 

[rainydays]

Thank`s again, was just a bit thrown by the colours used

 

[SLIPSHOD & SLAPDASH]

Throw that modern junk out & fit an 8 track. You know it makes sense