Where is the plug to drain coolant on my 2006 Ford Focus?

I'm quite sure k-seal has caused a blockage in my cooling system somewhere, as since using it the coolant level has been erratic, bottle empty one day, then higher the next e.t.c.

I want to flush old water out ( only use water) but where will I find the drain plug?

During flushing coolant, is it just the plug I remove or do I also have to disconnect radiator hoses too?

Where is the glow plug relay on my Ford focus 2006?

A diagnostic test showed code p0100 which is the Glow plug relay. I suspected that may be a problem as the glow plug light does not always show when the key is in ignition

Anyway, where can I locate the GPR?

Is it under the front right side wing?

OH AND Please ANSWER THIS: WOULD A BAD GLOW PLUG RELAY CAUSE ANY PROBLEMS OR NOT WITH THE RUNNNIG OF SAID VEHICLE?

Ford Focus 2013 aftermarket audio options?

Looking to drop $1000-$2000 for: radio (preferably single din with HD), tweeters, and door speakers.

I currently have a single 12 pioneer rated at 300 RMS hooked up to a 200 watt mtx audio amp at 4 ohms on the factory radio.

I also need a crossover to get the best audio output from my sub.

If you could elaborate on all the details, kit options prices, that would be great.

Added (1). Will eventually switch sub and amp as well, want it to bang hard. Above 1000 watts

Wrong power steering fluid?

Hi, I have an automatic Ford Focus 05, I bought a generic power steering fluid, but have now realised I need power steering fluid ATF… However have already put the other stuff in. What do I do now?!

Can additives e.t.c. Be added to quieten/ erase the sound from a clunking gearbox?

I drive a 5 speed mk2 2006 ford focus sport 1.8 TDCI

It goes into each gear perfectly with no hesitation at all, however it makes a clunk sound r change, thing it is only noticeable in low gears up to 3rd.
He says it is nothing to do with the clutch, not the release bearing or anything like that, he said it was (forgot what he said) inside the gearbox causing the clunk noise

Somebody said by adding additives to the gearbox will erase the clunking noise and make it go away.

He recommended slick 50 gearbox additive.

is he right that by using this the clunk will do away?

How to replace the jet washer thing on the bonnet that sprays water onto the windshield?

I went to a Zoo (Knowsley Safari Park ) several months ago, While driving through the monkey part a monkey bit off the jet washer thing that sprays water up to wash the windshield.

I have the plastic piece here that I picked up from a car salvage yard, the washer or whatever it is called but it has no wires attached.

How do I go about putting it on my car?

Added (1). I drive a 2006 mk2 ford focus sport 1.8 TDCI