hi, im installing a stereo in a mates 97 corolla
and there were 2 plugs coming out from the stock tape deck.
1 plug had 4 wires (RED, BLACK, YELLOW, WHITE)
2nd plug had 8 wires (assume for 4 speakers)
We chopped the plugs off and tryed to use a multimeter to find the power, backup, etc. and cant get a reading on anything...
is there any sort of security system on there... and what is the WHITE wire for anyway?