2003 svt focus zx3 Factory head unit

I dont want to sound stupid, but into car, and into radio harness, Is there a website place, or store i might beable to buy these, and or see a description on them?

Thanks for all the help.

Otto

No problem, you're not stupid, it's a good question.  "Into Car" means it hooks to the factory wiring harness and gives you wires to attach a head unit.  "Into Radio" means it plugs into the back of the factory radio and gives you wires, so you could put the radio into another car.  Using both means you plug one into the car and the other into the radio and you have all the wires hanging there to play with, without having to cut into the factory wiring harness.

Metra 70-1770 and 71-1770 should work in your car.  Here's the page.

Thanks dyohn for your help..

Otto