speaker setting on the head unit

[diablo]

have a kenwood kdc x492 and in the speaker setting i have 4 options

right now the factory setting is sp sel is set to off

i have 4 factory (stock) speakers installed i dont know the size of them.

there are 4 options in the setting menu of the kenwood what should it be set as

off sp sel off

for 5 & 4 in speakers sp sel 5/4

for 6 & 6x9 in speaker sp sel 6*9/6

for the OEM speaker sp sel dem

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