my e36 has a SERPI STAR alarm fitted , the box/siren is a G20 under the bonnet
, behind the glove box is a alarm box GM5-N and a pir box GM30.
The alarm has developed a major fault and needs removing , the car will turn over and spark but not FIRE.
most of the wires seem to be connected to the central locking system via the narrow multi plugs (green and yellow) behind the glove box.
does anyone know where the alarm would normally be imobilised via the main wiring for the car ?
ps. there seems to be a RELAY (non original) in the fuse box . connect to large positive , earthed to body and the other connected to a white/green wire inside the fuse box.