I have an old Pioneer casette-player without ISO, but a punch of wires of different colors. In the Pioneer´s owner´s manual I can find witch is witch but what about wires in car.
Wires are red, green, yellow, grey... maybe a black one and what not... The paired wires must be to speakers, but what about the others. They all are in a white adaptor.[/img]
340 -88 stereo wiring
In my 1990 340,
Green = 12v
Red/Black = Ignition switched 12v
Brown = Earth
And a black and grey to each of the speakers.
I didn't know which was which so I worked it out with a Power Probe (or you can use a Voltmeter), just check the voltage at each wire and then again with the ignition on. Put a 1.5v (AA or simillar) battery across the speaker leads and each speaker should crackle.
Then I used the paperwork with the stereo to see what was what there, and connected it up.
As my 340 has no accessory position on the ignition, you can't sit in the car with the engine off listening to the radio (when waiting to pick people up, etc), so I am thinking of putting a switch in from the battery to the radio so that when you turn the ignition off you can flick the switch and the radio comes back on. Or get a seat pressure sensor (there's one on the passenger seat that works the seat belt warning on the dash), and making it so the radio comes on when you sit in the driver's seat. However I'm not sure how reliable the switches are so I might put a switch in the door so that it only does it if the car is unlocked, which would stop a faulty pressure sensor turning the radio on and having a flat battery in the morning.
Sorry for the thread drift
Green = 12v
Red/Black = Ignition switched 12v
Brown = Earth
And a black and grey to each of the speakers.
I didn't know which was which so I worked it out with a Power Probe (or you can use a Voltmeter), just check the voltage at each wire and then again with the ignition on. Put a 1.5v (AA or simillar) battery across the speaker leads and each speaker should crackle.
Then I used the paperwork with the stereo to see what was what there, and connected it up.
As my 340 has no accessory position on the ignition, you can't sit in the car with the engine off listening to the radio (when waiting to pick people up, etc), so I am thinking of putting a switch in from the battery to the radio so that when you turn the ignition off you can flick the switch and the radio comes back on. Or get a seat pressure sensor (there's one on the passenger seat that works the seat belt warning on the dash), and making it so the radio comes on when you sit in the driver's seat. However I'm not sure how reliable the switches are so I might put a switch in the door so that it only does it if the car is unlocked, which would stop a faulty pressure sensor turning the radio on and having a flat battery in the morning.
Sorry for the thread drift
1991 Volvo 340 1.7 GL S/R Manual 5-door (69k)
1994 Volvo 850 T-5 GLE Auto 4-door (242k)
1994 Volvo 850 T-5 GLE Auto 4-door (242k)
I always use a multimeter for this kind of thing.
I just bind both my power inputs together and connect them to the always-on 12v battery wire, which is normally used for headunit memory. Then I insulate the ignition power cable and ignore it.
I don't like automatic stuff. If i want my stereo on, I'll turn it on. If I want it off, I'll turn it off.
I just bind both my power inputs together and connect them to the always-on 12v battery wire, which is normally used for headunit memory. Then I insulate the ignition power cable and ignore it.
I don't like automatic stuff. If i want my stereo on, I'll turn it on. If I want it off, I'll turn it off.