Help me with my radio...

Some radio installations only used the dashboard end speakers. These were small diameter twin speaker units at each end of the dashboard (oblong grills). The other speakers (doors and rear parcel shelf or D-pillars) were meant to be powered from the separate amplifier where fitted. The connection from head to amplifier is by a DIN connector lead from rear of head unit to the amplifier. The amplifier usually sits up under the dashboard on right hand side.

Cheers, Peter.

I'll look again for the amplifier. This 1990 740 Sedan only has speakers on all 4 doors. So the amp is not the Equalizer correct?

Thanks,

Matt

That is quite correct Matt. The amp is a smallish black box, the equaliser is usually part of the radio head or sits under it. I would expect the problem to be caused by a loose connection, possibly the power feed to the amp.

Cheers, Peter.

Peter,

Many thanks for your continued help. Obviously its time to take off that kneeboard and wiggle those connections.

Another question, if I remove the radio will I have to input the security code when I plug it back in? I don't have this code and will have to track it down. I want to clean up the radio outside of the car but won't bother if I have to mess with this security code business.

Matt

It would be advisable to find out the code before removing the radio. It may be that the code has been eliminated or changed since first installation. If the code has been deleted there is no need to find one as the radio will work perfectly OK. If it has been changed then you will have to find the previous owner for confirmation. Otherwise the dealer should be able to tell you by checking against the VIN. There may be enough slack in the radio wiring to enable it to be pulled out clear enough for you to clean it.

Cheers, Peter.

TD 6141 has no radio code.

If you remove the graphic equalizer, there is a bridge that plugs into the same connector that the equalizer plugs into.

The amplifier is the likely cause of your original complaint - follow the DIN cable plugged into the rear of the radio, to the amp that is located over the driver's feet, above that plastic kick panel. However, if you're really lucky, just plugging and unplugging that DIN cable at the back of the radio may fix your problem.

Thanks Mike.

There is no amplifier! I removed the kneepanel and I see the bracket where it may have been at one time but its not there now. The speakers are aftermarket Pioneer in the front and Boston Acoustic in the back and something funky must have gone on when the guy installed them.

Where would he hide the amplifier?

Thanks...

MP

You have to be able to find it if you follow the wires. Is there a DIN cable (similar to the graphic equalizer) plugged into the back of the radio?

The amp itself is under the panel above the drivers knees.

RS