[Vwdiesel] Acc'y position on ign switch, A2s

[Sandy Cameron]

Something the manufacturers never told us, there is a contact in the
ign/start switch that goes to 12 volts whenever a key is inserted in the
lock. They intended this to activate the seatbelt and "key in the ignition"
alarm (which most of us unplug) if you try to leave the car without
pocketing the key. (Teutonic obsessive compulsion about rules) "You VILL
remove das key! Nien?"

If you are using an aftermarket radio, wire the original volks red radio
wire (12 volts always) to the memory power for your radio so it does not not
forget your station settings, then wire the acc'y power for the radio
(usually yellow at the radio) to the thin brown with red stripe wire (Su
contact) coming off the back of the ign switch.

DO NOT attempt to power  boomer-idiot amplifiers from this wire, fire would
result. Use a relay.

Bentley diagrams show it functional only in the "off" position but this is
not true. The Su contact is energised in all 3 positions, whenever a key is
in the ign lock.

This will let you to sit and listen to the radio without the engine running,
while your significant other finishes the shopping.

Sandy
VE3AAC