Need audio advice

Is it possible to hook up subs and an amp to a factory head unit? If so, what do you use for the remote and RCAs?

I am looking to through some subs into my Escape and do not want to get rid of the factory deck - if I don't have to.

Thanks,

You'll need to add a high/low converter,Theres one made by Directed that when is senses a amll amount of voltage at the RCA's it adds power to a remote turn on, or you could find a remote wire on the back of the factory unit or a key switched wire.

Where would you be able to buy this?

best buy, circut city, any car audio place, radio shack. ect.

Check out the September 5.0 mag. They do a sub hook-up to a stock shaker 500 system.

Actually I'm going to the store today. So what's it's actual name that I should ask for?

Edit: Would it be called a high/low converter? I feel dumb.

i like the ones made by Directed{DEI}(less noise) but theres a bunch out there.Its called a high to low converter because it coverts the hi level signal to a low level that is usuable by the amps.Some amps can take both inputs though.

I went to radio shack,best buy and circuit city and they didn't have it. So, instead, I just connect the wire to the ignition switch, which is a purple wire(in a '99-'04).

i work in install at bestbuy and i know every best buy sells a line output converter. 22 bucks turns your speaker wires into rca out for the amp

When I went to radioshack, they had no idea what I was talking about. I went to best buy and circuit city and they didn't have it.

They HAVE to have it,they just dont like seeling stuff for the do it yourselfer.

My buddy works at Circuit City and he uses them all the time.

Actually called a Line Output Converter. (LOC)

Might explain why I didn't find it. Anyways, I just spliced it into the ignition and it works well, and I guess I saved myself $20.