What was a car audio head unit standard adopted?
in 1984
Is it internationally recognized?
yes
Which country created the standardization/
Germany
Which organization, specifically?
"Deutsches Institut für Normung"
What is the standard commonly referred to?
"DIN car radio size"
And its formal/technical name?
DIN 75490
What is the international standard known as today?
International standard ISO 7736
How many sizes are commonly used?
two
What are they?
"single DIN" (180 x 50 mm panel) or "double DIN" (180 x 100 mm panel) size.
What is the US standard?
7" x 2"
What about the double DIN size?
7" x 4"
Which area's cars don't use this standard?
Japan's
Which cars are they?
Kei
What tools allow you to remove a head unit?
a pair of U-shaped devices
Are they universally identical?
no
If you didn't have access to those tools, what else could you use?
a set of thin screwdrivers
How many holes does the Becker style of tool use?
one hole on each pair