Questionhi there
i have a 1994 ford escort LX, i put a MP3 Cd player after market in it, and now there is no audio, i can not hear anything.. it was working before with the factory tape player... please help
Answer
Hi Mike,
Strange one this and a bit vague in the question, remember I cannot see what you do.
Assuming you have just disconnected the standard Ford unit and plugged in another DIN unit there should be no problem.
Has the MP3 player got an authorization code that needs to be entered?
Have you any amps fitted that need the 12v OUT feed?
Have you inadvertently earthed the phone mute wire?
Does the facia light up and stations/ tracks show?
Can you change the stations/ tracks, i.e. do the radio controls respond?
I will tack on the standard guide to installing a radio so if you have “grafted” the unit in you can check it all.
Hope that helps.
Peter
Test an installation
Basic test and diagnostic procedure for car wiring harness.
You will need the following;
A test meter set at 20vdc or a test lamp (two wires on a 12v bulb) or probe (like a screwdriver with a 12v bulb in it and a lead and clip)
Some masking or paper tape to label wires and a marker pen,
An “AA” or “AAA” torch battery, (or borrow one out of the TV remote for an hour)
First the easy stuff, the speakers, (without amp!)
Speaker wires.
These are normally twisted together in pairs if you are lucky and are the same colour for each pair but one with a colour trace on, i.e. blue and blue/white, green and green/white. Touch a pair across the battery and you will hear a noise on the corresponding speaker, label it (e.g. left rear), continue until all four are identified and labelled.
Power leads connector.
Earth one side of your meter or tester to a metal part of the car, probe each wire until you have a wire that is live all the time with the ignition OFF, label this ‘+30’.
Switch on ignition and redo test until you find another previously dead wire now live, this is ‘+15’.
Switch off ignition and switch on the side / park lights, repeat test until you find a third live, label this ‘lights’. Switch off the lights.
You should now have two or three left. One will be earth, (usually black or brown); one could be to an amp and or electric ariel (usually blue or blue white) and one for phone mute if fitted. Clip tester to +30 and probe one of the remaining wires, if you have an electric ariel it will go up. Connect your DIN plug to the correct wires and jobs a good un’.
DIN connections are.
Speakers
Right rear -, right front -, left front -, left rear-,
Right rear +, Right front +, left front +, left rear +
Power block viewed from cable side
Phone mute (white),/ n/c, / ariel & amp (blue), /ignition (red)
N/c, / 12vlive, (yellow or orange), / lights, (various colours),/ negative (black)
Hope that helps, Peter
