Why does my brand new 2014 honda civic vibrate when put in reverse ONLY when engine is cold?

I have gone to honda many times and they keep telling me the car is completely normal and nothing is wrong with it. The car vibrates a lot ONLY when the engine is cold and I shift gears, mainly into reverse backing out in the morning. It will stop after a couple minutes and the low temperature indicator is gone, but I have never driven a car that vibrates like this. Every car i've driven especially when its below freezing doesn't vibrate at all. So again, only vibrates when engine cold, worst when put in reverse or when i stop at a red light. Please help me, honda keeps dismissing this and to me it worries me.

Aftermarket Stereo for 2007 Honda Civic Si?

I don't know where to start or what to buy, I'm a total noob when it comes to this stuff. Here's what's inside the car stock. I want to change all these out along with an amp(s) and subs.

Vehicle Speakers
Location Size (in) Depth (in)
Front 1 6.5 4
Front Tweeters 1.25 2
Rear 1 6.5 3
Subwoofer 1 8 5

Budget is around 900$ and I want a double din android deck.

Honda civic LX vs Ex is the ex worth it?

I have an Opportunity to buy a (coupe) 2006 Honda civic EX loaded with 189,000 km on it
$6850 +Taxes

or

A 2006 (Coupe) Honda Civic LX with 169,425 km on it
$6950 + taxes

I know what the differences are but my question is, the LX doesn't have a moonroof, an upgraded stereo, or alloy wheel

But is it really worth it to go for the ex because of the moonroof and upgraded stereo?

Why does my Honda civic have wheel spin?

This problem has been going on for a few years now. I bought my Honda civic 2007 model and had it for about 2 years when someone rear ended it and I had to take it to the panel beater for some repairs. But after minor repairs on my rear bumper I suffered occasional wheel spin when I give the car a medium amount of throttle in the dry and I normally have to counter steer to stop it from going into other lanes… It gets worst in the wet. I wouldn't think an ordinary family sedan to suffer from wheel spin so hence I'm asking this question.

Need slightly stiffer springs with minimal drop? Preferably 1.5 or less?

I have a 1995 honda civic and right now I bought the car with cut springs on tokico blues so its lowered about 2.5 inches. I'm moving to SF soon and need something where I won't die or scrape over bumps. I want some springs that give me a slight drop 1.5 or less and are a bit stiffer than stock so I can have some fun back home in wine country on some windy roads. I was thinking the Eibach Pro kit they advertise 1.6 inch drop in the front and 1.4 in the rear. Or the Tein H techs that advertise a 1.1 inch drop in front and.8 in the back. Or do you guys have any suggestions?

My Honda Civic 2006 (115k miles) air conditioning fades in and out, does anyone know what may be wrong?

I have a Honda Civic 2006 with 115k miles. The air conditioning has been fading in and out, and sometimes it won't turn off at all. For example, if i were to turn my air conditioning on full blast, the air will only come out full blast for a couple minutes, then without changing the setting, the air will eventually produce less and less air. And sometimes when I try to turn the air on, it won't turn on at all but then later in the day, it will turn on. Does anyone have a idea what may be wrong?