Where do you plug RCA cables in head unit?
The RCA cables go in the amp’s RCA socket. The red cable of RCA goes to the amp’s red socket while the white cable goes to the white socket. The amp’s RCA sockets are usually found at the back of the device.
How do you test RCA output on a head unit?
Do factory stereos have RCA outputs?
Well, factory stereos don’t have something called ‘RCA pre-outs’. These are the red and white inputs behind stereos that rca jacks plug into to produce sound… …and factory stereos just don’t come equipped with them.