head unit no longer beeps after fitting amp

[Ash1502]

i have a sony head unit in my car, and whenever you press a button such as source it makes a beep noise. also when you turn the car off and remove the key the head unit made 3 beeps.
i recently fitting an amp powering all four speakers. since i fited the amp, the headunit no longer beeps when a button is pressed, or when the car is swtiched off.
any ideas?

 

[Dal]

I've just had a look at a generic Sony car head unit manual on line:

http://pdf.crse.com/manuals/4107644111.pdf" onclick="window.open(this.href);return false;

It says:

Caution alarm
If you turn the ignition switch to the OFF position without detaching the front panel, the caution alarm will sound for a few seconds. The alarm will only sound if the built-in amplifier is used

So now you're using an external amplifier, it won't sound.

 

[red]

Above and beyond

 

[Ash1502]

cheers thanks.
what about when the ignition is switched on and i press one fo the buttons on the headunit, it used to beep. is that function controled via the internal amp too?

 

[Dal]

I've no idea, but there might be an answer in your own manual for your radio, or that generic one I linked to.

If you haven't got a copy then you can no doubt download it here:

http://support.sony-europe.com/eve/audio/index.aspx?site=odw_en_GB" onclick="window.open(this.href);return false;

k:

EDIT: If you go to that manual I linked to originally, on page 11 there's a section on "Adjusting setup items" that includes "beep on/off" I'd imagine there's a similar setting on your Sony one.

 

[Ash1502]

i got beep turned on. must be something to do with now having an external amp wired in.
thanks for your help