There are two connections from the stereos wire, which i don't know if i should connect. One is the p.cont and the other is the ant. cont. I do not have an amp. Should i connect the either of these wires to the wire harness's power antenna wire?
Sounds like you have a Kenwood.
The "P. Cont" is to drive the electric antenna relay or the remote turn-on for an amplifier.
The exception is when the radio has both a blue wire and a blue/white. In these cases, the blue is the antenna and the blue/white for the amplifier.
Some vehicles may also have an "electronic" antenna which has signal gain circuitry. You must hook this wire to one of the above to pick up stations well. Most notable are cars from VW and some Nissans.
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