aftermarket CD & Immobiliser

[Tool Pants]

Look at your oem radio. It has a plastic insulator on the side, for the radio alarm contact. Your aftermarket radio does not have this insulator. That is why you hear a beep when you set the alarm.

2 choices. You put tape on your aftermarket radio in the area of the insulator on the oem radio. Or, you disconnect the wire to the alarm contact for the radio.

Or, leave it alone. Some people like to hear a beep when the alarm is set. The alarm still works, just not the alarm for the radio.

[Chippy]

Ah, a picture says a thousand words.

Well i gave that a go and put a 1" square bit of insulating tape, two layers, but still get the beep.

As long as the alarm/immobiliser still works for the car itself, then i guess I can live with the beep of the horn.

In fact actually prefer the beep, as it can be difficult to see the indicators flash in bright sunlight and the central locking it far quieter than my old car!

Cheers anyway guys.

[Tool Pants]

The metal alarm contact presses hard against the side of the radio. When you slide the radio back in in the tape can peel away or get cut by the alarm contact. If the contact then touches the body of your aftermarket radio then you get the beep.

That is why the oem radio has a recessed plastic insulator. You can see in my picture the crease from the contact.

Live with it or disconnect the wire from the radio alarm contact. As I said, some people actually like it.