Car: '99 Astra Mk4 (G) SXI 1.6 16v
I've read that when you connect aftermarket radio's to Astra Mk4's the red and yellow wires need swapping and I've done that.. but I've still got a problem...
The only way I can get my head unit to power up is to have the permanent power supply from the car going into both the permanent and live connections for the radio.
Connecting the permanent to the permanent and live to live, I get full ignition-off functionality (i.e. I can eject a CD but not actually power the unit up) but even when the engine is on I still can't power it up.
Connecting the permanent and live wires the wrong way around just doesn't provide any power even when the engine's on so that's no help.
Does this mean there's something wrong with my car's electrics? Or is it just a standard Astra thing and I'll have to put up with just having permanent and no live power?
Any help would be greatly appreciated, thanks