Need a dash installation kit for a 3.5" screen in-dash stereo.

Get the harness for your car. Any local stereo shop will have it. Also pick up the dash mounting kit. It will have the instructions to take your dash apart.

Yes...See link below:

http://www.carid.com/1999-ford-escort-stereo-installation-dash-kits/?page=1&filter=1&sorter=category-page&per-page=60&field%5B154798%5D%5B%5D=201276656

saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

KW-AVX800 is double din. If Passat has enough opening, then it will. You may need to buy a kit: http://www.ebay.com/itm/Radio-Stereo-Double-Din-Install-Mount-Dash-Kit-Wire-Harness-Antenna-Adapter-/330797685691?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3AVolkswagen%7CModel%3APassat&hash=item4d05141bbb&vxp=mtr

A used one will work, you can get the code at the dealer. As for aftermarket radios: standard aftermarket radio size is referred to as 1 din. Your stock stereo is 1.5 din. To install an aftermarket stereo in Amy car requires an install kit, in your case the kit will make up for the size difference by just filling the gap with black plastic. But there are aftermarket stereos that are 1.5 din. They will still require an install kit, but will completely fill the hole in your dash. If you're planning on getting a $99 stereo at a parts store don't bother and just find a stock one. But spend $150 on an aftermarket stereo and you'll be very happy. Good luck.

A 1 DIN stereo is what came stock in your vehicle. A 2 din stereo is double the height of a 1 DIN stereo, but the same width.

A dash kit is not needed, just a little modelling but not hard at all. The Factory double din radeo is a little taller than 4in so you need to space it out with a slim piece of mdf on the top and bottom of the new radio cage. Then the trim plate around the screen will fill all gaps perfectly.

go on to ebay and search vz stereo there will be listings with stereo removal tools for about $10 and if you are going to install a double din stereo you will also need to buy a kit (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=190457652235&ssPageName=STRK:MEWAX:IT#ht_1157wt_1020) that fits around the display so you can hold the stereo in place. this kit includes all you need including the antenna adapter and another wireing harness

You best bet, because of a warranty, is to have a professional shop install your stereo. But if you are like all of us guru's here, you like to get your hands dirty.

First you need to remove the dash around your factory stereo. Be patient here and try not to break any of the dash. You may need to remove screws and pop loose plastic retainers located on the backside of the dash.

Wire the after market stereo to the harness located below by maching the colors provided. Thank the stereo companies for making this simple. Use crimp connectors or solder your connections, which ever best suits you. Tape up any remaining wires with eectrical to minimize the chance of a short.

Take the metal sleeve provided by the sereo you choose and install it into the install kit located below. Once you have removed the factory stereo, test fit the install kit and attach any tabs neccessary provided by the kit.

Now take the aftermarket stereo and place into the sleeve you installe din the install kit until it clicks into its locks. Now, the harness you wired up earlier, plug it into the factory harness and then into you stereo. Hook up the antenna, you may need to purchase a antenna adapter. Now before you install the stereo, do a test run to make sure everything is working. Once you are content that it is all working, install the new stereo and then reverse the steps in removing the dash panel and stereo.
Below are pictures of the needed hardware:

a normal car stereo is 1 din and then 1.5 din is about 1 inch taller they shouldhave what you are looking for at a car stereo dealer

i have a 2002 ford escape and i bought a double din radio and it did not fit and found out it is actually a din and 3/4 with out serious mods (cutting a bigger hole in dash) double din wont fit i bought a single din stereo and a din a 3/4 dash kit works fine